What’s Vulnerable › Vulnerabilities

CVE-2016-1254

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-12-05 · updated 2026-06-17
• Weakness: CWE-119

Description

Tor before 0.2.8.12 might allow remote attackers to cause a denial of service (client crash) via a crafted hidden service descriptor.

Affected products

• Debian Linux: 8.0, 9.0
• Fedoraproject Fedora: 24, 25
• openSUSE Leap: 42.2
• Opensuse: 13.2
• Opensuse Project Leap: 42.1
• torproject Tor: before 0.2.8.12 — fixed in 0.2.8.12

How to fix

Upgrade to a fixed version: torproject Tor 0.2.8.12. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-updates/2016-12/msg00154.html
• http://lists.opensuse.org/opensuse-updates/2016-12/msg00155.html
• https://blog.torproject.org/blog/tor-02812-released
• https://gitweb.torproject.org/tor.git/commit/?id=d978216dea6b21ac38230a59d172139185a68dbd
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FXOJSMCTIOHLBRYFBVEL3CDLGPZXX6WE/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTU2R253477RZLYAJAR5DAXAON7KIVLA/
• https://trac.torproject.org/projects/tor/ticket/21018
• https://www.debian.org/security/2016/dsa-3741
• http://lists.opensuse.org/opensuse-updates/2016-12/msg00154.html
• http://lists.opensuse.org/opensuse-updates/2016-12/msg00155.html
• https://blog.torproject.org/blog/tor-02812-released
• https://gitweb.torproject.org/tor.git/commit/?id=d978216dea6b21ac38230a59d172139185a68dbd

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