CVE-2024-50142 json
xfrm: validate new SA's prefixlen using SA family when sel.family is unset
published 2y ago modified 28d ago also EUVD-2024-44644
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
In the Linux kernel, the following vulnerability has been resolved:
xfrm: validate new SA's prefixlen using SA family when sel.family is unset
This expands the validation introduced in commit 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm selector.")
syzbot created an SA with usersa.sel.family = AF_UNSPEC usersa.sel.prefixlen_s = 128 usersa.family = AF_INET
Because of the AF_UNSPEC selector, verify_newsa_info doesn't put limits on prefixlen_{s,d}. But then copy_from_user_state sets x->sel.family to usersa.family (AF_INET). Do the same conversion in verify_newsa_info before validating prefixlen_{s,d}, since that's how prefixlen is going to be used later on.
Patch / fix
- Linux Linux 4.19.323, 5.4.285, 5.10.229, 5.15.170, 6.1.115, 6.6.59, 6.11.6, 6.12
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1.1
- linux Debian 12 6.1.115-1
- linux Debian 14, Debian 13 6.11.6-1
debian advisories DEBIAN-CVE-2024-50142
- linux Ubuntu 20.04 LTS 5.4.0-208.228
- linux Ubuntu 22.04 LTS 5.15.0-133.144
- linux Ubuntu 24.04 LTS 6.8.0-58.60
- linux-aws Ubuntu 20.04 LTS 5.4.0-1140.150
- linux-aws Ubuntu 22.04 LTS 5.15.0-1078.85
- linux-aws Ubuntu 24.04 LTS 6.8.0-1027.29
- linux-gcp Ubuntu 20.04 LTS 5.4.0-1143.152
- linux-gcp Ubuntu 22.04 LTS 5.15.0-1077.86
ubuntu advisories UBUNTU-CVE-2024-50142
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 9 5.14.0-503.19.1.el9_5
- rv RHEL 9 5.14.0-503.19.1.el9_5
- perf RHEL 9 5.14.0-503.19.1.el9_5
- rtla RHEL 9 5.14.0-503.19.1.el9_5
- bpftool RHEL 9 7.4.0-503.19.1.el9_5
- libperf RHEL 9 5.14.0-503.19.1.el9_5
- kernel-rt RHEL 9 5.14.0-503.19.1.el9_5
- kernel-64k RHEL 9 5.14.0-503.19.1.el9_5
red hat advisories RHSA-2025:1658RHSA-2024:11486RHSA-2024:10943RHSA-2024:10944
- kernel-source Linux Micro 6.1, Linux Micro 6.0 6.4.0-28.1
- kernel-default Linux Micro 6.1, Linux Micro 6.0 6.4.0-28.1
- kernel-kvmsmall Linux Micro 6.1, Linux Micro 6.0 6.4.0-28.1
- kernel-default-base Linux Micro 6.1, Linux Micro 6.0 6.4.0-28.1.21.6
- kernel-livepatch-MICRO-6-0_Update_6 Linux Micro 6.1, Linux Micro 6.0 1-3.1
- kernel-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-28.1
- kernel-source-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-28.1
- kernel-livepatch-MICRO-6-0-RT_Update_6 Linux Micro 6.1, Linux Micro 6.0 1-3.1
suse advisories SUSE-SU-2025:20192-1SUSE-SU-2025:20270-1SUSE-SU-2025:20190-1SUSE-SU-2025:20260-1SUSE-SU-2025:0955-1SUSE-SU-2025:0856-1
- kernel-source-longterm openSUSE Tumbleweed 6.12.11-1.1
- kernel-source openSUSE Tumbleweed 6.11.8-1.1
opensuse advisories openSUSE-SU-2025:14705-1openSUSE-SU-2024:14500-1
- kernel AlmaLinux 9 5.14.0-503.19.1.el9_5
- rv AlmaLinux 9 5.14.0-503.19.1.el9_5
- perf AlmaLinux 9 5.14.0-503.19.1.el9_5
- rtla AlmaLinux 9 5.14.0-503.19.1.el9_5
- bpftool AlmaLinux 9 7.4.0-503.19.1.el9_5
- libperf AlmaLinux 9 5.14.0-503.19.1.el9_5
- kernel-rt AlmaLinux 9 5.14.0-503.19.1.el9_5
- kernel-64k AlmaLinux 9 5.14.0-503.19.1.el9_5
almalinux advisories ALSA-2024:11486ALSA-2024:10943ALSA-2024:10944
- kernel-rt Rocky Linux 8 4.18.0-553.32.1.rt7.373.el8_10
- kernel Rocky Linux 8 4.18.0-553.32.1.el8_10
rocky linux advisories RLSA-2024:10944RLSA-2024:10943
- kernel Azure Linux 3.0 6.6.64.2-1
- kernel CBL-Mariner 2.0 5.15.173.1-1
azure linux advisories AZL-53474AZL-53745
Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT
- git.kernel.org/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a commit
- git.kernel.org/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3 commit
- git.kernel.org/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73 commit
- git.kernel.org/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71 commit
- git.kernel.org/stable/c/bce1afaa212ec380bf971614f70909a27882b862 commit
- git.kernel.org/stable/c/7d9868180bd1e4cf37e7c5067362658971162366 commit
- git.kernel.org/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a commit
- git.kernel.org/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 commit
Is CVE-2024-50142 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.
Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2024-50142 updated cvss 5.5
kernel: xfrm: validate new SA's prefixlen using SA family when sel.family is unset
-
Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 moreaffected: workaround, no fix planned “Out of support scope”
-
Red Hat CodeReady Linux Builder (v. 9) libperf 5.14.0-503.19.1.el9_5, kernel-debuginfo-common-s390x 5.14.0-503.19.1.el9_5, kernel-debuginfo-common-x86_64 5.14.0-503.19.1.el9_5, kernel-debuginfo-common-aarch64 5.14.0-503.19.1.el9_5, kernel-debuginfo-common-ppc64le 5.14.0-503.19.1.el9_5fixed: vendor fix RHSA-2024:11486
-
Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.55.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.55.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.55.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.55.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.55.1.el9_4fixed: vendor fix RHSA-2025:1658
-
Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-503.19.1.el9_5, perf 5.14.0-503.19.1.el9_5, rtla 5.14.0-503.19.1.el9_5, kernel-devel-matched 5.14.0-503.19.1.el9_5, kernel-64k-devel-matched 5.14.0-503.19.1.el9_5, kernel-debug-devel-matched 5.14.0-503.19.1.el9_5, +6 morefixed: vendor fix RHSA-2024:11486
-
Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.55.1.el9_4, perf 5.14.0-427.55.1.el9_4, rtla 5.14.0-427.55.1.el9_4, kernel-devel-matched 5.14.0-427.55.1.el9_4, kernel-64k-devel-matched 5.14.0-427.55.1.el9_4, kernel-debug-devel-matched 5.14.0-427.55.1.el9_4, +6 morefixed: vendor fix RHSA-2025:1658
-
Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.32.1.el8_10, kernel 4.18.0-553.32.1.el8_10, bpftool 4.18.0-553.32.1.el8_10, kernel-core 4.18.0-553.32.1.el8_10, kernel-tools 4.18.0-553.32.1.el8_10, python3-perf 4.18.0-553.32.1.el8_10, +15 morefixed: vendor fix RHSA-2024:10943
-
Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.4.0-503.19.1.el9_5, kernel 5.14.0-503.19.1.el9_5, kernel-64k 5.14.0-503.19.1.el9_5, kernel-core 5.14.0-503.19.1.el9_5, kernel-tools 5.14.0-503.19.1.el9_5, python3-perf 5.14.0-503.19.1.el9_5, +29 morefixed: vendor fix RHSA-2024:11486
-
Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.55.1.el9_4, kernel 5.14.0-427.55.1.el9_4, kernel-64k 5.14.0-427.55.1.el9_4, kernel-core 5.14.0-427.55.1.el9_4, kernel-tools 5.14.0-427.55.1.el9_4, python3-perf 5.14.0-427.55.1.el9_4, +28 morefixed: vendor fix RHSA-2025:1658
show 7 moreshow fewer
-
Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.32.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.32.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.32.1.el8_10fixed: vendor fix RHSA-2024:10943
-
Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.32.1.rt7.373.el8_10, kernel-rt-kvm 4.18.0-553.32.1.rt7.373.el8_10, kernel-rt-core 4.18.0-553.32.1.rt7.373.el8_10, kernel-rt-modules 4.18.0-553.32.1.rt7.373.el8_10, kernel-rt-debug-kvm 4.18.0-553.32.1.rt7.373.el8_10, kernel-rt-debug-core 4.18.0-553.32.1.rt7.373.el8_10, +4 morefixed: vendor fix RHSA-2024:10944
-
Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-503.19.1.el9_5, kernel-rt-core 5.14.0-503.19.1.el9_5, kernel-rt-modules 5.14.0-503.19.1.el9_5, kernel-rt-debug-core 5.14.0-503.19.1.el9_5, kernel-rt-modules-core 5.14.0-503.19.1.el9_5, kernel-rt-debug-modules 5.14.0-503.19.1.el9_5, +4 morefixed: vendor fix RHSA-2024:11486
-
Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.55.1.el9_4, kernel-rt-core 5.14.0-427.55.1.el9_4, kernel-rt-modules 5.14.0-427.55.1.el9_4, kernel-rt-debug-core 5.14.0-427.55.1.el9_4, kernel-rt-modules-core 5.14.0-427.55.1.el9_4, kernel-rt-debug-modules 5.14.0-427.55.1.el9_4, +4 morefixed: vendor fix RHSA-2025:1658
-
Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-503.19.1.el9_5, kernel-rt-kvm 5.14.0-503.19.1.el9_5, kernel-rt-core 5.14.0-503.19.1.el9_5, kernel-rt-modules 5.14.0-503.19.1.el9_5, kernel-rt-debug-kvm 5.14.0-503.19.1.el9_5, kernel-rt-debug-core 5.14.0-503.19.1.el9_5, +6 morefixed: vendor fix RHSA-2024:11486
-
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.55.1.el9_4, kernel-rt-kvm 5.14.0-427.55.1.el9_4, kernel-rt-core 5.14.0-427.55.1.el9_4, kernel-rt-modules 5.14.0-427.55.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.55.1.el9_4, kernel-rt-debug-core 5.14.0-427.55.1.el9_4, +6 morefixed: vendor fix RHSA-2025:1658
-
Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.32.1.rt7.373.el8_10, kernel-rt-core 4.18.0-553.32.1.rt7.373.el8_10, kernel-rt-modules 4.18.0-553.32.1.rt7.373.el8_10, kernel-rt-debug-core 4.18.0-553.32.1.rt7.373.el8_10, kernel-rt-debug-modules 4.18.0-553.32.1.rt7.373.el8_10, kernel-rt-modules-extra 4.18.0-553.32.1.rt7.373.el8_10, +2 morefixed: vendor fix RHSA-2024:10944
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-24-102-01 updated cvss 5.5
Siemens SIMATIC S7-1500 TM MFP
-
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystemaffected: mitigation, no fix available
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Linux Linux
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Classification
- Technology feeds
References
-
git.kernel.org
/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a
patch
-
git.kernel.org
/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3
patch
-
git.kernel.org
/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73
patch
-
git.kernel.org
/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71
patch
-
git.kernel.org
/stable/c/bce1afaa212ec380bf971614f70909a27882b862
patch
-
git.kernel.org
/stable/c/7d9868180bd1e4cf37e7c5067362658971162366
patch
-
git.kernel.org
/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a
patch
-
git.kernel.org
/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563
patch
- lists.debian.org /debian-lts-announce/2025/03/msg00002.html
- lists.debian.org /debian-lts-announce/2025/01/msg00001.html
- cert-portal.siemens.com /productcert/html/ssa-265688.html
Sources
- CVE List CVE-2024-50142
- NVD CVE-2024-50142
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.