Gentoo: GLSA-201210-05: Bash: Multiple vulnerabilities
Summary
Two vulnerabilities have been found in Bash:
* Bash example scripts do not handle temporary files securely
(CVE-2008-5374).
* Improper bounds checking in Bash could cause a stack-based buffer
overflow (CVE-2012-3410).
Resolution
All Bash users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-shells/bash-4.2_p37"
References
[ 1 ] CVE-2008-5374 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-5374 [ 2 ] CVE-2012-3410 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3410
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201210-05
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
Two vulnerabilities have been found in Bash, the worst of which may allow execution of arbitrary code.
Background
Bash is the standard GNU Bourne Again SHell.
Affected Packages
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-shells/bash < 4.2_p37 >= 4.2_p37
Impact
=====
A remote attacker could entice a user to open a specially crafted Bash
script, possibly resulting in execution of arbitrary code with the
privileges of the process, or a Denial of Service condition of the Bash
executable.
A local attacker may be able to perform symlink attacks to overwrite
arbitrary files with the privileges of the user running the application
or bypass shell access restrictions.
Workaround
There is no known workaround at this time.
