CVE-2023-52464
What it is
In the Linux kernel, the following vulnerability has been resolved: EDAC/thunderx: Fix possible out-of-bounds string access Enabling -Wstringop-overflow globally exposes a warning for a common bug in the usage of strncat(): drivers/edac/thunderx_edac.c: In function 'thunderx_ocx_com_threaded_isr': drivers/edac/thunderx_edac.c:1136:17: error: 'strncat' specified bound 1024 equals destination size [-Werror=stringop-overflow=] 1136 | strncat(msg, other, OCX_MESSAGE_SIZE); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ... 1145 | strncat(msg, other, OCX_MESSAGE_SIZE); ... 1150 | strncat(msg, other, OCX_MESSAGE_SIZE); ... Apparently the author of this driver expected strncat() to behave the way that strlcat() does, which uses the size of the destination buffer as its third argument rather than the length of the source buffer. The result is that there is no check on the size of the allocated buffer. Change it to strlcat(). [ bp: Trim compiler output, fixup commit message. ]
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-119 · Buffer errors
- Record status
- Modified
Affected
- Linux Kernel < 4.19.306
- Linux Kernel < 5.4.268
- Linux Kernel < 5.10.209
- Linux Kernel < 5.15.148
- Linux Kernel < 6.1.75
- Linux Kernel < 6.6.14
- Linux Kernel < 6.7.2
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-52464.md and follow it. Check whether this project is affected by CVE-2023-52464. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/426fae93c01dffa379225eb2bd4d3cdc42c6eec5
- https://git.kernel.org/stable/c/475c58e1a471e9b873e3e39958c64a2d278275c8
- https://git.kernel.org/stable/c/5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6
- https://git.kernel.org/stable/c/6aa7865ba7ff7f0ede0035180fb3b9400ceb405a
- https://git.kernel.org/stable/c/700cf4bead80fac994dcc43ae1ca5d86d8959b21
- https://git.kernel.org/stable/c/71c17ee02538802ceafc830f0736aa35b564e601
- https://git.kernel.org/stable/c/9dbac9fdae6e3b411fc4c3fca3bf48f70609c398
- https://git.kernel.org/stable/c/e1c86511241588efffaa49556196f09a498d5057
- https://git.kernel.org/stable/c/426fae93c01dffa379225eb2bd4d3cdc42c6eec5
- https://git.kernel.org/stable/c/475c58e1a471e9b873e3e39958c64a2d278275c8
References
- https://git.kernel.org/stable/c/426fae93c01dffa379225eb2bd4d3cdc42c6eec5
- https://git.kernel.org/stable/c/475c58e1a471e9b873e3e39958c64a2d278275c8
- https://git.kernel.org/stable/c/5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6
- https://git.kernel.org/stable/c/6aa7865ba7ff7f0ede0035180fb3b9400ceb405a
- https://git.kernel.org/stable/c/700cf4bead80fac994dcc43ae1ca5d86d8959b21
- https://git.kernel.org/stable/c/71c17ee02538802ceafc830f0736aa35b564e601
- https://git.kernel.org/stable/c/9dbac9fdae6e3b411fc4c3fca3bf48f70609c398
- https://git.kernel.org/stable/c/e1c86511241588efffaa49556196f09a498d5057
- https://git.kernel.org/stable/c/426fae93c01dffa379225eb2bd4d3cdc42c6eec5
- https://git.kernel.org/stable/c/475c58e1a471e9b873e3e39958c64a2d278275c8
- https://git.kernel.org/stable/c/5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6
- https://git.kernel.org/stable/c/6aa7865ba7ff7f0ede0035180fb3b9400ceb405a
- https://git.kernel.org/stable/c/700cf4bead80fac994dcc43ae1ca5d86d8959b21
- https://git.kernel.org/stable/c/71c17ee02538802ceafc830f0736aa35b564e601
- https://git.kernel.org/stable/c/9dbac9fdae6e3b411fc4c3fca3bf48f70609c398
- https://git.kernel.org/stable/c/e1c86511241588efffaa49556196f09a498d5057
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html