CVE-2019-3459 json
A heap address information leak while using L2CAP_GET_CONF_OPT was discovered in the Linux kernel before 5.1-rc1.
published 7y ago modified 4mo ago also EUVD-2019-13098
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
A heap address information leak while using L2CAP_GET_CONF_OPT was discovered in the Linux kernel before 5.1-rc1.
Patch / fix
- linux Debian 14, Debian 13, Debian 12 4.19.37-1
debian advisories DEBIAN-CVE-2019-3459
- linux Ubuntu 14.04 LTS 3.13.0-168.218
- linux Ubuntu 16.04 LTS 4.4.0-145.171
- linux Ubuntu 18.04 LTS 4.15.0-47.50
- linux-aws Ubuntu 14.04 LTS 4.4.0-1040.43
- linux-aws Ubuntu 16.04 LTS 4.4.0-1079.89
- linux-aws Ubuntu 18.04 LTS 4.15.0-1035.37
- linux-gcp Ubuntu 16.04 LTS 4.15.0-1029.31~16.04.1
- linux-gcp Ubuntu 18.04 LTS 4.15.0-1029.31
ubuntu advisories UBUNTU-CVE-2019-3459
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-alt RHEL 7 4.14.0-115.18.1.el7a
- perf RHEL 7 4.14.0-115.18.1.el7a
- kernel RHEL 7 4.14.0-115.18.1.el7a
- python-perf RHEL 7 4.14.0-115.18.1.el7a
- kernel-tools RHEL 7 4.14.0-115.18.1.el7a
- kernel-tools-libs RHEL 7 4.14.0-115.18.1.el7a
- kernel-bootwrapper RHEL 7 4.14.0-115.18.1.el7a
- kernel-abi-whitelists RHEL 7 4.14.0-115.18.1.el7a
red hat advisories RHSA-2020:0740RHSA-2019:3517RHSA-2019:2029RHSA-2019:3309RHSA-2019:2043
- kernel-ec2 SLE Module for Public Cloud 12 3.12.74-60.64.110.1
- kernel-azure SLES for SAP 12 SP3, SLES 12 SP3 4.4.176-4.25.1
- kernel-syms-azure SLES for SAP 12 SP3, SLES 12 SP3 4.4.176-4.25.1
- kernel-source-azure SLES for SAP 12 SP3, SLES 12 SP3 4.4.176-4.25.1
- kernel-azure SLE Module for Public Cloud 15 4.12.14-5.24.1
- kernel-syms-azure SLE Module for Public Cloud 15 4.12.14-5.24.1
- kernel-source-azure SLE Module for Public Cloud 15 4.12.14-5.24.1
- kernel-syms SLE Module for Development Tools 15 4.12.14-150.14.1
suse advisories SUSE-SU-2019:14127-1SUSE-SU-2019:1289-1SUSE-SU-2019:0901-1SUSE-SU-2019:0785-1SUSE-SU-2019:0784-1SUSE-SU-2019:0767-1
- kernel-source openSUSE Leap 15.0 4.12.14-lp150.12.48.1
opensuse advisories openSUSE-SU-2019:0203-1
- linux Arch Linux 5.0.6.arch1-1
arch linux advisories AVG-988
Is CVE-2019-3459 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-2019-3459 updated cvss 5.3
kernel: Heap address information leak while using L2CAP_GET_CONF_OPT
-
Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmwareaffected: workaround, no fix planned “- Disabling the bluetooth hardware in the bios. - Prevent loading of the bluetooth kernel modules. - Disable the bluetooth connection by putting the system in "airport" mode.”
-
Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-147.el8, kernel-debuginfo-common-aarch64 4.18.0-147.el8, kernel-debuginfo-common-ppc64le 4.18.0-147.el8 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-147.el8, kernel 4.18.0-147.el8, bpftool 4.18.0-147.el8, kernel-core 4.18.0-147.el8, kernel-tools 4.18.0-147.el8, python3-perf 4.18.0-147.el8, +15 morefixed: vendor fix “- Disabling the bluetooth hardware in the bios. - Prevent loading of the bluetooth kernel modules. - Disable the bluetooth connection by putting the system in "airport" mode.” RHSA-2019:3517
-
Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, kernel-tools-libs 3.10.0-1062.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, kernel-tools-libs 3.10.0-1062.el7, +2 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.el7fixed: vendor fix “- Disabling the bluetooth hardware in the bios. - Prevent loading of the bluetooth kernel modules. - Disable the bluetooth connection by putting the system in "airport" mode.” RHSA-2019:2029
-
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 4.14.0-115.18.1.el7a, kernel 4.14.0-115.18.1.el7a, kernel-alt 4.14.0-115.18.1.el7a, python-perf 4.14.0-115.18.1.el7a, kernel-tools 4.14.0-115.18.1.el7a, kernel-tools-libs 4.14.0-115.18.1.el7a, +3 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-ppc64le 4.14.0-115.18.1.el7afixed: vendor fix “- Disabling the bluetooth hardware in the bios. - Prevent loading of the bluetooth kernel modules. - Disable the bluetooth connection by putting the system in "airport" mode.” RHSA-2020:0740
-
Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-1062.rt56.1022.el7, kernel-rt-trace 3.10.0-1062.rt56.1022.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1062.rt56.1022.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1062.rt56.1022.el7, kernel-rt-kvm 3.10.0-1062.rt56.1022.el7, kernel-rt-trace 3.10.0-1062.rt56.1022.el7, kernel-rt-debug-kvm 3.10.0-1062.rt56.1022.el7, kernel-rt-trace-kvm 3.10.0-1062.rt56.1022.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1062.rt56.1022.el7fixed: vendor fix “- Disabling the bluetooth hardware in the bios. - Prevent loading of the bluetooth kernel modules. - Disable the bluetooth connection by putting the system in "airport" mode.” RHSA-2019:2043
-
Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-147.rt24.93.el8, kernel-rt-core 4.18.0-147.rt24.93.el8, kernel-rt-modules 4.18.0-147.rt24.93.el8, kernel-rt-debug-core 4.18.0-147.rt24.93.el8, kernel-rt-debug-modules 4.18.0-147.rt24.93.el8, kernel-rt-modules-extra 4.18.0-147.rt24.93.el8, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-147.rt24.93.el8, kernel-rt-kvm 4.18.0-147.rt24.93.el8, kernel-rt-core 4.18.0-147.rt24.93.el8, kernel-rt-modules 4.18.0-147.rt24.93.el8, kernel-rt-debug-kvm 4.18.0-147.rt24.93.el8, kernel-rt-debug-core 4.18.0-147.rt24.93.el8, +4 morefixed: vendor fix “- Disabling the bluetooth hardware in the bios. - Prevent loading of the bluetooth kernel modules. - Disable the bluetooth connection by putting the system in "airport" mode.” RHSA-2019:3309
-
Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-kdump 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, +7 more Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1062.el7, kernel-debuginfo-common-x86_64 3.10.0-1062.el7, kernel-debuginfo-common-ppc64le 3.10.0-1062.el7 Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, kernel-tools-libs 3.10.0-1062.el7, +2 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.el7fixed: vendor fix “- Disabling the bluetooth hardware in the bios. - Prevent loading of the bluetooth kernel modules. - Disable the bluetooth connection by putting the system in "airport" mode.” RHSA-2019:2029
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
Exploit prediction
1.83% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- marc.info https://marc.info/?l=oss-security&m=154721580222522&w=2 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 3.3 | AV:A/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- Linux Linux
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
- Technology feeds
References
-
git.kernel.org
/linus/7c9cbd0b5e38a1672fcd137894ace3b042dfbf69
patch, vendor-advisory
-
bugzilla.novell.com
/show_bug.cgi?id=1120758
issue-tracking, patch, third-party-advisory
-
marc.info
/?l=oss-security&m=154721580222522&w=2
mailing-list, exploit, third-party-advisory
-
access.redhat.com
/errata/RHSA-2019:2043
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2019:2029
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2019:3309
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2019:3517
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2020:0740
vendor-advisory, third-party-advisory
-
lore.kernel.org
/linux-bluetooth/20190110062833.GA15047%40kroah.com/
mailing-list
-
bugzilla.redhat.com
/show_bug.cgi?id=1663176
issue-tracking, mitigation, third-party-advisory
-
people.canonical.com
/~ubuntu-security/cve/2019/CVE-2019-3459.html
third-party-advisory
-
lists.debian.org
/debian-lts-announce/2019/05/msg00002.html
mailing-list, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2019/05/msg00041.html
mailing-list, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2019/05/msg00042.html
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2019/06/27/2
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2019/06/27/7
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2019/06/28/1
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2019/06/28/2
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2019/08/12/1
mailing-list, third-party-advisory
Sources
- CVE List CVE-2019-3459
- NVD CVE-2019-3459
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.