Gentoo: GLSA-201410-01: Bash: Multiple vulnerabilities
Summary
Florian Weimer, Todd Sabin, Michal Zalewski et al. discovered further parsing flaws in Bash. The unaffected Gentoo packages listed in this GLSA contain the official patches to fix the issues tracked as CVE-2014-6277, CVE-2014-7186, and CVE-2014-7187. Furthermore, the official patch known as "function prefix patch" is included which prevents the exploitation of CVE-2014-6278.
Resolution
All Bash 3.1 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-shells/bash-3.1_p22:3.1"
All Bash 3.2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-shells/bash-3.2_p56:3.2"
All Bash 4.0 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-shells/bash-4.0_p43:4.0"
All Bash 4.1 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-shells/bash-4.1_p16:4.1"
All Bash 4.2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-shells/bash-4.2_p52"
References
[ 1 ] CVE-2014-6277 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-6277 [ 2 ] CVE-2014-6278 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-6278 [ 3 ] CVE-2014-7186 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-7186 [ 4 ] CVE-2014-7187 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-7187
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201410-01
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.
Synopsis
Multiple parsing flaws in Bash could allow remote attackers to inject code or cause a Denial of Service condition.
Background
Bash is the standard GNU Bourne Again SHell.
Affected Packages
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-shells/bash < 4.2_p52 *>= 3.1_p22 *>= 3.2_p56 *>= 4.0_p43 *>= 4.1_p16 >= 4.2_p52
Impact
===== A remote attacker could exploit these vulnerabilities to execute arbitrary commands or cause a Denial of Service condition via various vectors.
Workaround
There is no known workaround at this time.