Gentoo: 201604-04 Normal: Libksba Denial Of Service And Integer Overflow
gentoo
April 26, 2016
Multiple vulnerabilities have been found in libksba, allowing a possible Denial of Service and unspecified other vectors through integer overflows
Summary
libksba is vulnerable to two integer overflows and a Denial of Service vulnerability. Please read the references for additional details.
Resolution
All libksba users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libksba-1.3.3"
References
[ 1 ] Denial of Service due to stack overflow in src/ber-decoder.c
[ 2 ] Integer overflow in the BER decoder src/ber-decoder.c
[ 3 ] Integer overflow in the DN decoder src/dn.c
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201604-04
style>.gentoo_availability{display:block;}
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.
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Severity: Normal
Title: libksba: Multiple vulnerabilities
Date: April 26, 2016
Bugs: #546464
ID: 201604-04
Background
Libksba is a X.509 and CMS (PKCS#7) library.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
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1 dev-libs/libksba < 1.3.3 >= 1.3.3
Impact
=====
Remote attackers could cause Denial of Service or unspecified other
vectors through various integer overflows.
Workaround
There is no known workaround at this time.
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