Vulnerability Description
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. ]
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.12.0, < 4.19.306 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/426fae93c01dffa379225eb2bd4d3cdc42c6eec5Patch
- https://git.kernel.org/stable/c/475c58e1a471e9b873e3e39958c64a2d278275c8Patch
- https://git.kernel.org/stable/c/5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6Patch
- https://git.kernel.org/stable/c/6aa7865ba7ff7f0ede0035180fb3b9400ceb405aPatch
- https://git.kernel.org/stable/c/700cf4bead80fac994dcc43ae1ca5d86d8959b21Patch
- https://git.kernel.org/stable/c/71c17ee02538802ceafc830f0736aa35b564e601Patch
- https://git.kernel.org/stable/c/9dbac9fdae6e3b411fc4c3fca3bf48f70609c398Patch
- https://git.kernel.org/stable/c/e1c86511241588efffaa49556196f09a498d5057Patch
- https://git.kernel.org/stable/c/426fae93c01dffa379225eb2bd4d3cdc42c6eec5Patch
- https://git.kernel.org/stable/c/475c58e1a471e9b873e3e39958c64a2d278275c8Patch
- https://git.kernel.org/stable/c/5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6Patch
- https://git.kernel.org/stable/c/6aa7865ba7ff7f0ede0035180fb3b9400ceb405aPatch
- https://git.kernel.org/stable/c/700cf4bead80fac994dcc43ae1ca5d86d8959b21Patch
- https://git.kernel.org/stable/c/71c17ee02538802ceafc830f0736aa35b564e601Patch
- https://git.kernel.org/stable/c/9dbac9fdae6e3b411fc4c3fca3bf48f70609c398Patch
FAQ
What is CVE-2023-52464?
CVE-2023-52464 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 i...
How severe is CVE-2023-52464?
CVE-2023-52464 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-52464?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.