CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2021-38185
High (7.8) in gnu cpio. EPSS 4.2% chance of exploitation in the next 30 days.
GNU cpio through 2.13 allows attackers to execute arbitrary code via a crafted pattern file, because of a dstring.c ds_fgetstr integer overflow that triggers an out-of-bounds heap write. NOTE: it is unclear whether there are common cases where the pattern file, associated with the -E option, is untrusted data.
Severity
- EPSS
- 4.2% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)
- CWE
- CWE-190
- Published
- Modified
- Record from
- the NVD, synced
Affected
- gnu:cpio
References
- https://git.savannah.gnu.org/cgit/cpio.git/commit/?id=dd96882877721703e19272fe25034560b794061b
- https://github.com/fangqyi/cpiopwn
- https://lists.debian.org/debian-lts-announce/2023/06/msg00007.html
- https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00000.html
- https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00002.html