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Alerts This Week
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Gentoo: GLSA-202201-18 Normal: OpenSSL Security Flaw and DoS

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Calendar Grey February 21, 2014
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Gentoo Security Notice GLSA-202103-15 highlights libcurl's weaknesses that can lead to unauthorized access or denial of service scenarios.
Multiple vulnerabilities have been found in libssh, allowing attackers to execute arbitrary code or cause Denial of Service.

Summary

Multiple buffer overflow, double free, and integer overflow vulnerabilities have been discovered in libssh.

Topics%20covered

Topics Covered

security advisory denial of service code execution gentoo linux libssh

Resolution

All libssh users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-libs/libssh-0.5.3"

References

[ 1 ] CVE-2012-4559 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4559 [ 2 ] CVE-2012-4560 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4560 [ 3 ] CVE-2012-4561 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4561 [ 4 ] CVE-2012-4562 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4562 [ 5 ] CVE-2012-6063 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6063

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201402-26
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: libssh: Arbitrary code execution
Date: February 21, 2014
Bugs: #444147
ID: 201402-26

Topics%20covered

Topics Covered

security advisory denial of service code execution gentoo linux libssh

Synopsis

Multiple vulnerabilities have been found in libssh, allowing attackersto execute arbitrary code or cause Denial of Service.

Background

libssh is a C library providing SSHv2 and SSHv1.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-libs/libssh < 0.5.3 >= 0.5.3

Impact

===== A remote attacker could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.