SB2014031409 - Cryptographic issues in libssh
Published: March 14, 2014 Updated: July 28, 2020
Security Bulletin ID
SB2014031409
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Cryptographic issues (CVE-ID: CVE-2014-0017)
The vulnerability allows a local non-authenticated attacker to gain access to sensitive information.
The RAND_bytes function in libssh before 0.6.3, when forking is enabled, does not properly reset the state of the OpenSSL pseudo-random number generator (PRNG), which causes the state to be shared between children processes and allows local users to obtain sensitive information by leveraging a pid collision.
Remediation
Install update from vendor's website.
References
- http://lists.opensuse.org/opensuse-updates/2014-03/msg00036.html
- http://lists.opensuse.org/opensuse-updates/2014-03/msg00040.html
- http://secunia.com/advisories/57407
- http://www.debian.org/security/2014/dsa-2879
- http://www.libssh.org/2014/03/04/libssh-0-6-3-security-release/
- http://www.openwall.com/lists/oss-security/2014/03/05/1
- http://www.ubuntu.com/usn/USN-2145-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1072191