PT-2017-9848 · Tor+1 · Tor+1

Published 2016-10-18 · Updated 2017-07-01 · CVE-2016-8860

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Tor versions prior to 0.2.8.9 Tor versions 0.2.9.x prior to 0.2.9.4-alpha

Description The issue allows remote attackers to cause a denial of service, resulting in the crash of clients, hidden services, relays, or authorities, via crafted data. This is due to internal functions expecting NUL termination of buf t data, which was not ensured by the implementation of or/buffers.c.

Recommendations For Tor versions prior to 0.2.8.9, update to version 0.2.8.9 or later. For Tor versions 0.2.9.x prior to 0.2.9.4-alpha, update to version 0.2.9.4-alpha or later.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2016-2110

CVE-2016-8860

DLA-663-1

DSA-3694-1

MGASA-2016-0356

Affected Products

Alt Linux

Tor

References · 29

• https://github.com/torproject/tor/commit/3cea86eb2fbb65949673eb4ba8ebb695c87a57ce · Vendor Advisory
• https://debian.org/security/2016/dsa-3694 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-8860 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2016-8860 · Security Note
• https://errata.altlinux.org/ALT-PU-2016-2110 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DSA-3694-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-8860 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/tor · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-8860 · Security Note
• https://trac.torproject.org/projects/tor/ticket/20384 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-8860 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3694-1 · Vendor Advisory
• https://security.gentoo.org/glsa/201612-45 · Vendor Advisory
• https://blog.torproject.org/blog/tor-0289-released-important-fixes · Vendor Advisory
• https://advisories.mageia.org/MGASA-2016-0356.html · Security Note