RCE in GNU Patch
CVE-2019-13638
GNU patch through 2.7.6 is vulnerable to OS shell command injection that can be exploited by opening a crafted patch file that contains an ed style diff payload with shell metacharacters. The ed editor does not need to be present on the vulnerable system. This is different from CVE-2018-1000156.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.045 (91.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.045 · newest: 0.045 · change: 0.000
Affected products
- GNU Patch — versions 2.7.6
- Debian Linux — versions 8.0, 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-tracker.debian.org/tracker/CVE-2019-13638 (Third Party Advisory)
- git.savannah.gnu.org/cgit/patch.git/commit/ (Patch, Mailing List, Vendor Advisory)
- www.debian.org/security/2019/dsa-4489 (vendor-advisory, Third Party Advisory)
- seclists.org/bugtraq/2019/Jul/54 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/bugtraq/2019/Aug/29 (mailing-list)
- packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Trav…
- security.gentoo.org/glsa/201908-22 (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.netapp.com/advisory/ntap-20190828-0001/
- github.com/irsl/gnu-patch-vulnerabilities
Frequently asked questions
- What is CVE-2019-13638?
- CVE-2019-13638 is a high-severity vulnerability in GNU Patch, classified under OS Command Injection. CVSS score: 7.8/10. Published 2019-07-26.
- How severe is CVE-2019-13638?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-13638 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.