Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Cpio | <= 2.13 |
Related Weaknesses (CWE)
References
- https://git.savannah.gnu.org/cgit/cpio.git/commit/?id=dd96882877721703e19272fe25PatchThird Party Advisory
- https://github.com/fangqyi/cpiopwnExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00007.html
- https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00000.htmlExploitMailing ListVendor Advisory
- https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00002.htmlExploitMailing ListVendor Advisory
- https://git.savannah.gnu.org/cgit/cpio.git/commit/?id=dd96882877721703e19272fe25PatchThird Party Advisory
- https://github.com/fangqyi/cpiopwnExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00007.html
- https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00000.htmlExploitMailing ListVendor Advisory
- https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00002.htmlExploitMailing ListVendor Advisory
FAQ
What is CVE-2021-38185?
CVE-2021-38185 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 u...
How severe is CVE-2021-38185?
CVE-2021-38185 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-2021-38185?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Cpio.