CVE-2023-52464EDAC/thunderx: Fix possible out-of-bounds string access
Updated under an hour ago ()
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It affects Linux and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | 41003396f932d7f027725c7acebb6a7caa41dc3e builds before 71c17ee02538802ceafc830f0736aa35b564e601; 41003396f932d7f027725c7acebb6a7caa41dc3e builds before 5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6; 41003396f932d7f027725c7acebb6a7caa41dc3e builds before 6aa7865ba7ff7f0ede0035180fb3b9400ceb405a; 41003396f932d7f027725c7acebb6a7caa41dc3e builds before 700cf4bead80fac994dcc43ae1ca5d86d8959b21; 41003396f932d7f027725c7acebb6a7caa41dc3e builds before 9dbac9fdae6e3b411fc4c3fca3bf48f70609c398; from 41003396f932d7f027725c7acebb6a7caa41dc3e before e1c86511241588efffaa49556196f09a498d5057; 41003396f932d7f027725c7acebb6a7caa41dc3e builds before 426fae93c01dffa379225eb2bd4d3cdc42c6eec5; 41003396f932d7f027725c7acebb6a7caa41dc3e builds before 475c58e1a471e9b873e3e39958c64a2d278275c8 | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 4.12.0 before 4.19.306; from 4.20.0 before 5.4.268; from 5.5.0 before 5.10.209; from 5.11.0 before 5.15.148; from 5.16.0 before 6.1.75; from 6.2.0 before 6.6.14; from 6.7.0 before 6.7.2 | NVD |
References
- https://git.kernel.org/stable/c/71c17ee02538802ceafc830f0736aa35b564e601patch
- 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/9dbac9fdae6e3b411fc4c3fca3bf48f70609c398patch
- https://git.kernel.org/stable/c/e1c86511241588efffaa49556196f09a498d5057patch
- https://git.kernel.org/stable/c/426fae93c01dffa379225eb2bd4d3cdc42c6eec5patch
- https://git.kernel.org/stable/c/475c58e1a471e9b873e3e39958c64a2d278275c8patch
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.