medium 5.5

CVE-2024-36957 json

octeontx2-af: avoid off-by-one read from userspace

published 2024-05-30 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-36307

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits: 0; none known

In the Linux kernel, the following vulnerability has been resolved:

We try to access count + 1 byte from userspace with memdup_user(buffer, count + 1). However, the userspace only provides buffer of count bytes and only these count bytes are verified to be okay to access. To ensure the copied buffer is NUL terminated, we use memdup_user_nul instead.

Patch / fix

fixed in 1 distros 6 links 6

Linux Linux 5.10.217, 5.12, 5.15.159, 6.1.91, 6.6.31, 6.8.10, 6.9

debian ubuntu red hat suse almalinux rocky linux

linux Debian 12 6.1.94-1
linux Debian 14, Debian 13 6.8.11-1

debian advisories DEBIAN-CVE-2024-36957

linux Ubuntu 22.04 LTS 5.15.0-118.128
linux Ubuntu 24.04 LTS 6.8.0-40.40
linux-aws Ubuntu 22.04 LTS 5.15.0-1067.73
linux-aws Ubuntu 24.04 LTS 6.8.0-1013.14
linux-gcp Ubuntu 22.04 LTS 5.15.0-1066.74
linux-gcp Ubuntu 24.04 LTS 6.8.0-1012.13
linux-gke Ubuntu 22.04 LTS 5.15.0-1064.70
linux-gke Ubuntu 24.04 LTS 6.8.0-1008.11

ubuntu advisories UBUNTU-CVE-2024-36957

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 5.14.0-427.26.1.el9_4
rv RHEL 9 5.14.0-427.26.1.el9_4
perf RHEL 9 5.14.0-427.26.1.el9_4
rtla RHEL 9 5.14.0-427.26.1.el9_4
bpftool RHEL 9 7.3.0-427.26.1.el9_4
libperf RHEL 9 5.14.0-427.26.1.el9_4
kernel-rt RHEL 9 5.14.0-427.26.1.el9_4
kernel-64k RHEL 9 5.14.0-427.26.1.el9_4

red hat advisories RHSA-2024:4583 RHSA-2024:4106 RHSA-2024:4108

kernel-rt Linux Micro 6.0 6.4.0-9.1
kernel-source-rt Linux Micro 6.0 6.4.0-9.1
kernel-source Linux Micro 6.0 6.4.0-18.1
kernel-default Linux Micro 6.0 6.4.0-18.1
kernel-kvmsmall Linux Micro 6.0 6.4.0-18.1
kernel-default-base Linux Micro 6.0 6.4.0-17.1.1.51
kernel-64kb SLE Module for Basesystem 15 SP5 5.14.21-150500.55.88.1
kernel-syms SLE Module for Development Tools 15 SP5 5.14.21-150500.55.88.1

suse advisories SUSE-SU-2025:20028-1 SUSE-SU-2025:20008-1 SUSE-SU-2024:4364-1 SUSE-SU-2024:3985-1 SUSE-SU-2024:3983-1 SUSE-SU-2024:2973-1

kernel AlmaLinux 9 5.14.0-427.26.1.el9_4
rv AlmaLinux 9 5.14.0-427.26.1.el9_4
perf AlmaLinux 9 5.14.0-427.26.1.el9_4
rtla AlmaLinux 9 5.14.0-427.26.1.el9_4
bpftool AlmaLinux 9 7.3.0-427.26.1.el9_4
libperf AlmaLinux 9 5.14.0-427.26.1.el9_4
kernel-rt AlmaLinux 9 5.14.0-427.26.1.el9_4
kernel-64k AlmaLinux 9 5.14.0-427.26.1.el9_4

almalinux advisories ALSA-2024:4583

kernel Rocky Linux 9 5.14.0-427.26.1.el9_4

rocky linux advisories RLSA-2024:4583

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-2024-36957 updated 2026-11-06 cvss 4.4

kernel: octeontx2-af: avoid off-by-one read from userspace

Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
affected: no fix available
Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-debuginfo-common-s390x 5.14.0-284.71.1.el9_2, kernel-debuginfo-common-x86_64 5.14.0-284.71.1.el9_2, kernel-debuginfo-common-aarch64 5.14.0-284.71.1.el9_2, kernel-debuginfo-common-ppc64le 5.14.0-284.71.1.el9_2
fixed: vendor fix RHSA-2024:4108
Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-427.26.1.el9_4, perf 5.14.0-427.26.1.el9_4, rtla 5.14.0-427.26.1.el9_4, kernel-devel-matched 5.14.0-427.26.1.el9_4, kernel-64k-devel-matched 5.14.0-427.26.1.el9_4, kernel-debug-devel-matched 5.14.0-427.26.1.el9_4, +6 more
fixed: vendor fix RHSA-2024:4583
Red Hat Enterprise Linux AppStream EUS (v.9.2) perf 5.14.0-284.71.1.el9_2, rtla 5.14.0-284.71.1.el9_2, kernel-devel-matched 5.14.0-284.71.1.el9_2, kernel-64k-devel-matched 5.14.0-284.71.1.el9_2, kernel-debug-devel-matched 5.14.0-284.71.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.71.1.el9_2, +5 more
fixed: vendor fix RHSA-2024:4108
Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.3.0-427.26.1.el9_4, kernel 5.14.0-427.26.1.el9_4, kernel-64k 5.14.0-427.26.1.el9_4, kernel-core 5.14.0-427.26.1.el9_4, kernel-tools 5.14.0-427.26.1.el9_4, python3-perf 5.14.0-427.26.1.el9_4, +28 more
fixed: vendor fix RHSA-2024:4583
Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool 7.0.0-284.71.1.el9_2, kernel 5.14.0-284.71.1.el9_2, kernel-64k 5.14.0-284.71.1.el9_2, kernel-core 5.14.0-284.71.1.el9_2, kernel-tools 5.14.0-284.71.1.el9_2, python3-perf 5.14.0-284.71.1.el9_2, +28 more
fixed: vendor fix RHSA-2024:4108
Red Hat Enterprise Linux CRB (v. 9) libperf 5.14.0-427.26.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.26.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.26.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.26.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.26.1.el9_4 Red Hat Enterprise Linux NFV (v. 9) kernel-rt 5.14.0-427.26.1.el9_4, kernel-rt-kvm 5.14.0-427.26.1.el9_4, kernel-rt-core 5.14.0-427.26.1.el9_4, kernel-rt-modules 5.14.0-427.26.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.26.1.el9_4, kernel-rt-debug-core 5.14.0-427.26.1.el9_4, +6 more
fixed: vendor fix RHSA-2024:4583
Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-core 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-modules 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-debug-core 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-modules-core 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-debug-modules 5.14.0-284.71.1.rt14.356.el9_2, +4 more Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-kvm 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-core 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-modules 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-debug-kvm 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-debug-core 5.14.0-284.71.1.rt14.356.el9_2, +6 more
fixed: vendor fix RHSA-2024:4106

show 2 more

Red Hat Enterprise Linux RT (v. 9) kernel-rt 5.14.0-427.26.1.el9_4, kernel-rt-core 5.14.0-427.26.1.el9_4, kernel-rt-modules 5.14.0-427.26.1.el9_4, kernel-rt-debug-core 5.14.0-427.26.1.el9_4, kernel-rt-modules-core 5.14.0-427.26.1.el9_4, kernel-rt-debug-modules 5.14.0-427.26.1.el9_4, +4 more
fixed: vendor fix RHSA-2024:4583
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 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-doc 5.14.0-284.71.1.el9_2
not affected: vulnerable code not present

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-25-226-15 updated 2026-02-25 cvss 0.0

Siemens SINEC OS

Siemens RUGGEDCOM RST2428P (6GK6242-6PA00) < 3.1 Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family < 3.1
affected: fixed in V3.1 support.industry.siemens.com
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family
not affected

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: 2 y ago (2024-06-05)

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	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

Classification

Weakness

CWE-193 Off-by-one Error

Technology feeds

Linux kernel rss critical rss

References

Sources

CVE List CVE-2024-36957
NVD CVE-2024-36957

Fencer Vulns 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.

Summary