What’s Vulnerable › Vulnerabilities

CVE-2017-12836

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-08-24 · updated 2026-06-17

Description

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."

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 17.04
• Debian Linux: 8.0, 9.0
• GNU Cvs: 1.12.1, 1.12.3, 1.12.5, 1.12.6, 1.12.7, 1.12.9 (+4)

References

• http://lists.nongnu.org/archive/html/bug-cvs/2017-08/msg00000.html
• http://www.debian.org/security/2017/dsa-3940
• http://www.openwall.com/lists/oss-security/2017/08/11/1
• http://www.openwall.com/lists/oss-security/2017/08/11/4
• http://www.securityfocus.com/bid/100279
• http://www.ubuntu.com/usn/USN-3399-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1480800
• https://security.gentoo.org/glsa/201709-17
• http://lists.nongnu.org/archive/html/bug-cvs/2017-08/msg00000.html
• http://www.debian.org/security/2017/dsa-3940
• http://www.openwall.com/lists/oss-security/2017/08/11/1
• http://www.openwall.com/lists/oss-security/2017/08/11/4

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