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Debian Security Advisory DSA 2879-1 (libssh - security update)

Information

Severity

Severity

Low

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

1.9

CVSSv2 Vector

CVSSv2 Vector

AV:L/AC:M/Au:N/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

10 years ago

Modified

Modified

2 years ago

Summary

It was discovered that libssh, a tiny C SSH library, did not reset the state of the PRNG after accepting a connection. A server mode application that forks itself to handle incoming connections could see its children sharing the same PRNG state, resulting in a cryptographic weakness and possibly the recovery of the private key.

Affected Software

Affected Software

libssh on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For the oldstable distribution (squeeze), this problem has been fixed in version 0.4.5-3+squeeze2. For the stable distribution (wheezy), this problem has been fixed in version 0.5.4-1+deb7u1. For the testing distribution (jessie), this problem has been fixed in version 0.5.4-3. For the unstable distribution (sid), this problem has been fixed in version 0.5.4-3. We recommend that you upgrade your libssh packages.

Common Vulnerabilities and Exposures (CVE)