GLSA-201507-02 : Tor: Denial of Service

This script is Copyright (C) 2015 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201507-02
(Tor: Denial of Service)

Tor does not handle data correctly when specifically crafted data is
sent, and also fails to properly verify a descriptor provided by a hidden
service directory.

Impact :

A remote attacker could cause a Denial of Service condition in both a
Tor client or a Tor server.

Workaround :

There is no known workaround at this time.

See also :

https://blog.torproject.org/blog/tor-02512-and-0267-are-released
https://security.gentoo.org/glsa/201507-02

Solution :

All Tor users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-misc/tor-0.2.6.7'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.3
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Gentoo Local Security Checks

Nessus Plugin ID: 84556 ()

Bugtraq ID: 73932
73938

CVE ID: CVE-2015-2928
CVE-2015-2929

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