Ubuntu 10.04 LTS / 12.04 LTS / 12.10 / 13.04 / 13.10 : curl vulnerability (USN-2048-1)

Ubuntu Security Notice (C) 2013-2016 Canonical, Inc. / NASL script (C) 2013-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

Scott Cantor discovered that libcurl incorrectly verified CN and SAN
name fields when digital signature verification was disabled. When
libcurl is being used in this uncommon way by specific applications,
an attacker could exploit this to perform a man in the middle attack
to view sensitive information or alter encrypted communications.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected libcurl3 package.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N)
CVSS Temporal Score : 3.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 71244 ()

Bugtraq ID: 63776

CVE ID: CVE-2013-4545