#VU30428 Improper Handling of Exceptional Conditions in Tor - CVE-2015-2688

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Main Vulnerability Database Vulnerabilities #VU30428

#VU30428 Improper Handling of Exceptional Conditions in Tor - CVE-2015-2688

Published: January 24, 2020 / Updated: July 17, 2020


Vulnerability identifier: #VU30428
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2015-2688
CWE-ID:
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Tor
Software vendor:
tor.eff.org

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

buf_pullup in Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle unexpected arrival times of buffers with invalid layouts, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.


Remediation

Install update from vendor's website.

External links