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medium 5.3

CVE-2019-11479 json

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes.

published 7y ago modified 4mo ago also EUVD-2019-3152

cvss
5.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
91.3%
EPSS 91.3% chance of exploitation in 30 days, percentile 99.8%
public exploits
0
none known

Summary

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commits 967c05aee439e6e5d7d805e195b3a20ef5c433d6 and 5f3e2bf008c2221478101ee72f5cb4654b9fc363.

Patch / fix

  • Linux Linux kernel 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11
  • linux Debian 14, Debian 13, Debian 12 4.19.37-4

debian advisories DEBIAN-CVE-2019-11479

  • linux Ubuntu 16.04 LTS 4.4.0-154.181
  • linux Ubuntu 18.04 LTS 4.15.0-54.58
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1087.98
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1043.45
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1036.38~16.04.1
  • linux-gcp Ubuntu 18.04 LTS 4.15.0-1036.38
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-54.58~16.04.1
  • linux-hwe Ubuntu 18.04 LTS 4.18.0-25.26~18.04.1

ubuntu advisories UBUNTU-CVE-2019-11479

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 6 2.6.32-754.15.3.el6
  • perf RHEL 6 2.6.32-754.15.3.el6
  • python-perf RHEL 6 2.6.32-754.15.3.el6
  • kernel-kdump RHEL 6 2.6.32-754.15.3.el6
  • kernel-firmware RHEL 6 2.6.32-754.15.3.el6
  • kernel-bootwrapper RHEL 6 2.6.32-754.15.3.el6
  • kernel-abi-whitelists RHEL 6 2.6.32-754.15.3.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-754.15.3.el6

red hat advisories RHSA-2019:1488RHSA-2019:1489RHSA-2019:1490RHSA-2019:1480RHSA-2019:1479RHSA-2019:1481

  • kernel-rt SLE Real Time 12 SP4 4.12.14-8.6.1
  • kernel-syms-rt SLE Real Time 12 SP4 4.12.14-8.6.1
  • kernel-rt_debug SLE Real Time 12 SP4 4.12.14-8.6.1
  • kernel-source-rt SLE Real Time 12 SP4 4.12.14-8.6.1
  • kernel-source-rt Real Time Module 15 SP1 4.12.14-14.8.1
  • kernel-rt Real Time Module 15 SP1 4.12.14-14.8.1
  • kernel-syms-rt Real Time Module 15 SP1 4.12.14-14.8.1
  • kernel-rt_debug Real Time Module 15 SP1 4.12.14-14.8.1

suse advisories SUSE-SU-2019:2756-1SUSE-SU-2019:2430-1SUSE-SU-2019:1692-1SUSE-SU-2019:1550-1SUSE-SU-2019:14089-1SUSE-SU-2019:1536-1

  • kernel-source openSUSE Tumbleweed 5.14.6-1.4
  • kernel-source openSUSE Tumbleweed 6.6.17-1.1
  • kernel-syms openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-obs-qa openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-source openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-default openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-vanilla openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-kvmsmall openSUSE Leap 15.0 4.12.14-lp150.12.64.1

opensuse advisories openSUSE-SU-2024:10728-1openSUSE-SU-2024:13704-1openSUSE-SU-2019:1579-1openSUSE-SU-2019:1571-1

  • linux Arch Linux 5.1.11.arch1-1
  • linux-lts Arch Linux 4.19.52-1
  • linux-zen Arch Linux 5.1.11.zen1-1
  • linux-hardened Arch Linux 5.1.11.a-1

arch linux advisories AVG-983AVG-984AVG-985AVG-986

Is CVE-2019-11479 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-11479 updated cvss 5.3

kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service

  • Red Hat Enterprise Linux 5 kernel
    affected: workaround, no fix planned “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack”
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-80.4.2.el8_0, kernel-debuginfo-common-aarch64 4.18.0-80.4.2.el8_0, kernel-debuginfo-common-ppc64le 4.18.0-80.4.2.el8_0 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-80.4.2.el8_0, kernel 4.18.0-80.4.2.el8_0, bpftool 4.18.0-80.4.2.el8_0, kernel-core 4.18.0-80.4.2.el8_0, kernel-tools 4.18.0-80.4.2.el8_0, python3-perf 4.18.0-80.4.2.el8_0, +15 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1479
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-957.21.3.el7, kernel 3.10.0-957.21.3.el7, bpftool 3.10.0-957.21.3.el7, python-perf 3.10.0-957.21.3.el7, kernel-tools 3.10.0-957.21.3.el7, kernel-tools-libs 3.10.0-957.21.3.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-957.21.3.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-957.21.3.el7, kernel 3.10.0-957.21.3.el7, bpftool 3.10.0-957.21.3.el7, python-perf 3.10.0-957.21.3.el7, kernel-tools 3.10.0-957.21.3.el7, kernel-tools-libs 3.10.0-957.21.3.el7, +2 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1481
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.4) perf 3.10.0-693.50.3.el7, kernel 3.10.0-693.50.3.el7, python-perf 3.10.0-693.50.3.el7, kernel-tools 3.10.0-693.50.3.el7, kernel-tools-libs 3.10.0-693.50.3.el7, kernel-abi-whitelists 3.10.0-693.50.3.el7, +1 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1483
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) perf 3.10.0-862.34.2.el7, kernel 3.10.0-862.34.2.el7, python-perf 3.10.0-862.34.2.el7, kernel-tools 3.10.0-862.34.2.el7, kernel-tools-libs 3.10.0-862.34.2.el7, kernel-abi-whitelists 3.10.0-862.34.2.el7, +1 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1482
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-957.21.3.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1481
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.50.3.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1483
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) kernel-debuginfo-common-x86_64 3.10.0-862.34.2.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1482
show 25 more
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-754.15.3.el6, kernel 2.6.32-754.15.3.el6, kernel-firmware 2.6.32-754.15.3.el6, kernel-abi-whitelists 2.6.32-754.15.3.el6, kernel-debuginfo-common-i686 2.6.32-754.15.3.el6, kernel-debuginfo-common-x86_64 2.6.32-754.15.3.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-754.15.3.el6, kernel-debuginfo-common-i686 2.6.32-754.15.3.el6, kernel-debuginfo-common-x86_64 2.6.32-754.15.3.el6
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1488
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 4.14.0-115.8.2.el7a, kernel 4.14.0-115.8.2.el7a, kernel-alt 4.14.0-115.8.2.el7a, python-perf 4.14.0-115.8.2.el7a, kernel-tools 4.14.0-115.8.2.el7a, kernel-tools-libs 4.14.0-115.8.2.el7a, +3 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-ppc64le 4.14.0-115.8.2.el7a
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1602
  • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-957.21.3.rt56.935.el7, kernel-rt-kvm 3.10.0-957.21.3.rt56.935.el7, kernel-rt-trace 3.10.0-957.21.3.rt56.935.el7, kernel-rt-debug-kvm 3.10.0-957.21.3.rt56.935.el7, kernel-rt-trace-kvm 3.10.0-957.21.3.rt56.935.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-957.21.3.rt56.935.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1486
  • Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-754.15.3.el6, kernel 2.6.32-754.15.3.el6, kernel-firmware 2.6.32-754.15.3.el6, kernel-abi-whitelists 2.6.32-754.15.3.el6, kernel-debuginfo-common-i686 2.6.32-754.15.3.el6, kernel-debuginfo-common-x86_64 2.6.32-754.15.3.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-754.15.3.el6, kernel-debuginfo-common-x86_64 2.6.32-754.15.3.el6
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1488
  • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-80.4.2.rt9.152.el8_0, kernel-rt-core 4.18.0-80.4.2.rt9.152.el8_0, kernel-rt-modules 4.18.0-80.4.2.rt9.152.el8_0, kernel-rt-debug-core 4.18.0-80.4.2.rt9.152.el8_0, kernel-rt-debug-modules 4.18.0-80.4.2.rt9.152.el8_0, kernel-rt-modules-extra 4.18.0-80.4.2.rt9.152.el8_0, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-80.4.2.rt9.152.el8_0, kernel-rt-kvm 4.18.0-80.4.2.rt9.152.el8_0, kernel-rt-core 4.18.0-80.4.2.rt9.152.el8_0, kernel-rt-modules 4.18.0-80.4.2.rt9.152.el8_0, kernel-rt-debug-kvm 4.18.0-80.4.2.rt9.152.el8_0, kernel-rt-debug-core 4.18.0-80.4.2.rt9.152.el8_0, +4 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1480
  • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt 3.10.0-957.21.3.rt56.935.el7, kernel-rt-trace 3.10.0-957.21.3.rt56.935.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-957.21.3.rt56.935.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1486
  • Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-754.15.3.el6, kernel 2.6.32-754.15.3.el6, kernel-kdump 2.6.32-754.15.3.el6, kernel-firmware 2.6.32-754.15.3.el6, kernel-bootwrapper 2.6.32-754.15.3.el6, kernel-abi-whitelists 2.6.32-754.15.3.el6, +4 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1488
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-957.21.3.el7, kernel 3.10.0-957.21.3.el7, bpftool 3.10.0-957.21.3.el7, python-perf 3.10.0-957.21.3.el7, kernel-kdump 3.10.0-957.21.3.el7, kernel-tools 3.10.0-957.21.3.el7, +7 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1481
  • Red Hat Enterprise Linux Server AUS (v. 6.5) perf 2.6.32-431.95.3.el6, kernel 2.6.32-431.95.3.el6, kernel-firmware 2.6.32-431.95.3.el6, kernel-abi-whitelists 2.6.32-431.95.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.95.3.el6
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1490
  • Red Hat Enterprise Linux Server AUS (v. 6.6) perf 2.6.32-504.79.3.el6, kernel 2.6.32-504.79.3.el6, kernel-firmware 2.6.32-504.79.3.el6, kernel-abi-whitelists 2.6.32-504.79.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.79.3.el6
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1489
  • Red Hat Enterprise Linux Server AUS (v. 7.2) perf 3.10.0-327.79.2.el7, kernel 3.10.0-327.79.2.el7, python-perf 3.10.0-327.79.2.el7, kernel-tools 3.10.0-327.79.2.el7, kernel-tools-libs 3.10.0-327.79.2.el7, kernel-abi-whitelists 3.10.0-327.79.2.el7, +1 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1485
  • Red Hat Enterprise Linux Server AUS (v. 7.3) perf 3.10.0-514.66.2.el7, kernel 3.10.0-514.66.2.el7, python-perf 3.10.0-514.66.2.el7, kernel-tools 3.10.0-514.66.2.el7, kernel-tools-libs 3.10.0-514.66.2.el7, kernel-abi-whitelists 3.10.0-514.66.2.el7, +1 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1484
  • Red Hat Enterprise Linux Server E4S (v. 7.2) perf 3.10.0-327.79.2.el7, kernel 3.10.0-327.79.2.el7, python-perf 3.10.0-327.79.2.el7, kernel-tools 3.10.0-327.79.2.el7, kernel-tools-libs 3.10.0-327.79.2.el7, kernel-abi-whitelists 3.10.0-327.79.2.el7, +1 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1485
  • Red Hat Enterprise Linux Server E4S (v. 7.3) perf 3.10.0-514.66.2.el7, kernel 3.10.0-514.66.2.el7, python-perf 3.10.0-514.66.2.el7, kernel-tools 3.10.0-514.66.2.el7, kernel-tools-libs 3.10.0-514.66.2.el7, kernel-bootwrapper 3.10.0-514.66.2.el7, +3 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1484
  • Red Hat Enterprise Linux Server EUS (v. 7.4) perf 3.10.0-693.50.3.el7, kernel 3.10.0-693.50.3.el7, python-perf 3.10.0-693.50.3.el7, kernel-kdump 3.10.0-693.50.3.el7, kernel-tools 3.10.0-693.50.3.el7, kernel-tools-libs 3.10.0-693.50.3.el7, +6 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1483
  • Red Hat Enterprise Linux Server EUS (v. 7.5) perf 3.10.0-862.34.2.el7, kernel 3.10.0-862.34.2.el7, python-perf 3.10.0-862.34.2.el7, kernel-kdump 3.10.0-862.34.2.el7, kernel-tools 3.10.0-862.34.2.el7, kernel-tools-libs 3.10.0-862.34.2.el7, +6 more
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1482
  • Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-754.15.3.el6, kernel-debuginfo-common-i686 2.6.32-754.15.3.el6, kernel-debuginfo-common-ppc64 2.6.32-754.15.3.el6, kernel-debuginfo-common-s390x 2.6.32-754.15.3.el6, kernel-debuginfo-common-x86_64 2.6.32-754.15.3.el6
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1488
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-957.21.3.el7, kernel-debuginfo-common-x86_64 3.10.0-957.21.3.el7, kernel-debuginfo-common-ppc64le 3.10.0-957.21.3.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1481
  • Red Hat Enterprise Linux Server Optional AUS (v. 6.5) kernel 2.6.32-431.95.3.el6, python-perf 2.6.32-431.95.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.95.3.el6
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1490
  • Red Hat Enterprise Linux Server Optional AUS (v. 6.6) python-perf 2.6.32-504.79.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.79.3.el6
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1489
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.2) kernel-debuginfo-common-x86_64 3.10.0-327.79.2.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1485
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.3) kernel-debuginfo-common-x86_64 3.10.0-514.66.2.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1484
  • Red Hat Enterprise Linux Server Optional E4S (v. 7.2) kernel-debuginfo-common-x86_64 3.10.0-327.79.2.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1485
  • Red Hat Enterprise Linux Server Optional E4S (v. 7.3) kernel-debuginfo-common-x86_64 3.10.0-514.66.2.el7, kernel-debuginfo-common-ppc64le 3.10.0-514.66.2.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1484
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.4) kernel-debuginfo-common-ppc64 3.10.0-693.50.3.el7, kernel-debuginfo-common-x86_64 3.10.0-693.50.3.el7, kernel-debuginfo-common-ppc64le 3.10.0-693.50.3.el7
    fixed: vendor fix “For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack” RHSA-2019:1483

14 more fixed in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-19-253-03 updated cvss 5.3

ICSA-19-253-03_Siemens Industrial Products (Update P)

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSMA-20-170-06 updated cvss 5.3

BD Alaris PCU (Update A)

  • Becton, Dickinson and Company (BD) Alaris PC Unit 9.13, 9.19, 9.33, 12.1
    affected: vendor fix bd.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

91.33% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Linux Linux kernel

Classification

Weakness
  • CWE-405 Asymmetric Resource Consumption (Amplification)
  • CWE-770 Allocation of Resources Without Limits or Throttling
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.