Mandriva Linux Security Advisory : tor (MDVSA-2015:205)

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


Synopsis :

The remote Mandriva Linux host is missing a security update.

Description :

Updated tor packages fix security vulnerabilities :

disgleirio discovered that a malicious client could trigger an
assertion failure in a Tor instance providing a hidden service, thus
rendering the service inaccessible (CVE-2015-2928).

DonnchaC discovered that Tor clients would crash with an assertion
failure upon parsing specially crafted hidden service descriptors
(CVE-2015-2929).

Introduction points would accept multiple INTRODUCE1 cells on one
circuit, making it inexpensive for an attacker to overload a hidden
service with introductions. Introduction points now no longer allow
multiple cells of that type on the same circuit.

The tor package has been updated to version 0.2.4.27, fixing these
issues.

See also :

http://advisories.mageia.org/MGASA-2015-0151.html

Solution :

Update the affected tor package.

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: Mandriva Local Security Checks

Nessus Plugin ID: 83097 ()

Bugtraq ID: 73932
73938

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

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