Vulnerability in GNU Cvs
CVE-2017-12836
CVS 1.12.x, when configured to use SSH for remote repositories, might allow remote attackers to execute arbitrary code via a repository URL with a crafted hostname, as demonstrated by "-oProxyCommand=id;localhost:/bar."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.060 (93.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.060 · newest: 0.060 · change: 0.000
Affected products
- GNU Cvs — versions 1.12.1, 1.12.3, 1.12.5
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.04
- Debian Linux — versions 8.0, 9.0
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/100279 (VDB Entry, Third Party Advisory, vdb-entry)
- www.openwall.com/lists/oss-security/2017/08/11/4 (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2017/dsa-3940 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/08/11/1 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- lists.nongnu.org/archive/html/bug-cvs/2017-08/msg00000.html (Vendor Advisory, mailing-list, Exploit, Mailing List)
- bugzilla.redhat.com/show_bug.cgi (Patch, VDB Entry, Third Party Advisory, Issue Tracking)
- security.gentoo.org/glsa/201709-17 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3399-1 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-12836?
- CVE-2017-12836 is a high-severity vulnerability in GNU Cvs. CVSS score: 7.5/10. Published 2017-08-24.
- How severe is CVE-2017-12836?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-12836 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.