Answer in brief
CVE-2023-52464 records a Unknown severity vulnerability in EDAC/thunderx: Fix possible out-of-bounds string access. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=41003396f932d7f027725c7acebb6a7caa41dc3e <71c17ee02538802ceafc830f0736aa35b564e601 || >=41003396f932d7f027725c7acebb6a7caa41dc3e <5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6 || >=41003396f932d7f027725c7acebb6a7caa41dc3e <6aa7865ba7ff7f0ede0035180fb3b9400ceb405a || >=41003396f932d7f027725c7acebb6a7caa41dc3e <700cf4bead80fac994dcc43ae1ca5d86d8959b21 || >=41003396f932d7f027725c7acebb6a7caa41dc3e <9dbac9fdae6e3b411fc4c3fca3bf48f70609c398 || >=41003396f932d7f027725c7acebb6a7caa41dc3e <e1c86511241588efffaa49556196f09a498d5057 || >=41003396f932d7f027725c7acebb6a7caa41dc3e <426fae93c01dffa379225eb2bd4d3cdc42c6eec5 || >=41003396f932d7f027725c7acebb6a7caa41dc3e <475c58e1a471e9b873e3e39958c64a2d278275c8 | 71c17ee02538802ceafc830f0736aa35b564e601, 5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6, 6aa7865ba7ff7f0ede0035180fb3b9400ceb405a, 700cf4bead80fac994dcc43ae1ca5d86d8959b21, 9dbac9fdae6e3b411fc4c3fca3bf48f70609c398, e1c86511241588efffaa49556196f09a498d5057, 426fae93c01dffa379225eb2bd4d3cdc42c6eec5, 475c58e1a471e9b873e3e39958c64a2d278275c8 |
| Linux/Linuxgeneric | 4.12 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.0 <V3.1.5 | V3.1.5 |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.0 <V3.1.5 | V3.1.5 |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.0 <V3.1.5 | V3.1.5 |
Published upstream
Feb 23, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
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. ]
Quoted source text, attributed separately from HOL analysis.