Synopsis
The remote Debian host is missing a security-related update.
Description
Several vulnerabilities were discovered in cURL, an URL transfer library :
- CVE-2015-3143 NTLM-authenticated connections could be wrongly reused for requests without any credentials set, leading to HTTP requests being sent over the connection authenticated as a different user. This is similar to the issue fixed in DSA-2849-1.
- CVE-2015-3144 When parsing URLs with a zero-length hostname (such as 'http://:80'), libcurl would try to read from an invalid memory address. This could allow remote attackers to cause a denial of service (crash). This issue only affects the upcoming stable (jessie) and unstable (sid) distributions.
- CVE-2015-3145 When parsing HTTP cookies, if the parsed cookie's 'path' element consists of a single double-quote, libcurl would try to write to an invalid heap memory address. This could allow remote attackers to cause a denial of service (crash). This issue only affects the upcoming stable (jessie) and unstable (sid) distributions.
- CVE-2015-3148 When doing HTTP requests using the Negotiate authentication method along with NTLM, the connection used would not be marked as authenticated, making it possible to reuse it and send requests for one user over the connection authenticated as a different user.
Solution
Upgrade the curl packages.
For the stable distribution (wheezy), these problems have been fixed in version 7.26.0-1+wheezy13.
For the upcoming stable distribution (jessie), these problems have been fixed in version 7.38.0-4+deb8u1.
Plugin Details
File Name: debian_DSA-3232.nasl
Agent: unix
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:curl, cpe:/o:debian:debian_linux:7.0
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 4/22/2015