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2 vulnerabilities by eradman
CVE-2026-18370 (GCVE-0-2026-18370)
Vulnerability from nvd – Published: 2026-08-10 12:56 – Updated: 2026-08-10 17:59 X_Open Source
VLAI
EPSS
VEX
Title
Heap-based buffer overflow in entr
Summary
entr is vulnerable to Heap-based buffer overflow in run_utility() function. The function allocates a fixed-size heap buffer using malloc(ARG_MAX) and copies command-line arguments into it. It advances the destination pointer based on the return value of strlcpy(), which returns the total length of the source string rather than the number of bytes written. When the buffer is exactly filled, the remaining size underflows as an unsigned size_t, causing subsequent copies to write out of bounds. This can be triggered by supplying command-line arguments whose combined length fills the buffer, or via the /_ substitution feature which expands a short token into a longer pathname at runtime. The local attacker can cause memory corruption, process abort, and denial of service.
This issue was fixed in commit 2467fe0
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:58 UTC
CWE
- CWE-122 - Heap-based buffer overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-18370 | third-party-advisory |
| https://eradman.com/entrproject/ | product |
| https://github.com/eradman/entr/commit/2467fe0aa5… | patch |
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CVE-2026-18370 (GCVE-0-2026-18370)
Vulnerability from cvelistv5 – Published: 2026-08-10 12:56 – Updated: 2026-08-10 17:59 X_Open Source
VLAI
EPSS
VEX
Title
Heap-based buffer overflow in entr
Summary
entr is vulnerable to Heap-based buffer overflow in run_utility() function. The function allocates a fixed-size heap buffer using malloc(ARG_MAX) and copies command-line arguments into it. It advances the destination pointer based on the return value of strlcpy(), which returns the total length of the source string rather than the number of bytes written. When the buffer is exactly filled, the remaining size underflows as an unsigned size_t, causing subsequent copies to write out of bounds. This can be triggered by supplying command-line arguments whose combined length fills the buffer, or via the /_ substitution feature which expands a short token into a longer pathname at runtime. The local attacker can cause memory corruption, process abort, and denial of service.
This issue was fixed in commit 2467fe0
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:58 UTC
CWE
- CWE-122 - Heap-based buffer overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-18370 | third-party-advisory |
| https://eradman.com/entrproject/ | product |
| https://github.com/eradman/entr/commit/2467fe0aa5… | patch |
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