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Ubuntu 12.04 LTS / 12.10 / 13.04 / 13.10 : curl vulnerability (USN-2058-1)

medium Nessus Plugin ID 71531

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Synopsis

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

Description

Marc Deslauriers discovered that libcurl incorrectly verified CN and SAN name fields when digital signature verification was disabled in the GnuTLS backend. 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-gnutls package.

See Also

https://usn.ubuntu.com/2058-1/

Plugin Details

Severity: Medium

ID: 71531

File Name: ubuntu_USN-2058-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 12/19/2013

Updated: 9/19/2019

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:13.04, p-cpe:/a:canonical:ubuntu_linux:libcurl3-gnutls, cpe:/o:canonical:ubuntu_linux:12.10, cpe:/o:canonical:ubuntu_linux:13.10, cpe:/o:canonical:ubuntu_linux:12.04:-:lts

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 12/18/2013

Vulnerability Publication Date: 12/23/2013

Reference Information

CVE: CVE-2013-6422

BID: 64431

USN: 2058-1