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Gentoo: GLSA-201401-25 Normal: ldns Arbitrary Code Execution

gentoo
Calendar Grey January 21, 2014
Scroller Gentoo
A vulnerability in ldns can lead to remote code execution or Denial of Service on Gentoo systems. It is essential to update to reduce potential threats.
A heap-based buffer overflow in ldns might allow remote attackers to execute arbitrary code or cause a Denial of Service condition.

Summary

ldns contains a heap-based buffer overflow in the ldns_rr_new_frm_str_internal function.

Topics%20covered

Topics Covered

security advisory denial of service gentoo buffer overflow arbitrary code execution

Resolution

All ldns users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-libs/ldns-1.6.11"
Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying these packages.
NOTE: This is a legacy GLSA. Updates for all affected architectures are available since October 11, 2011. It is likely that your system is already no longer affected by this issue.

References

[ 1 ] CVE-2011-3581 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3581

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201401-25
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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: ldns: Arbitrary code execution
Date: January 21, 2014
Bugs: #384249
ID: 201401-25

Topics%20covered

Topics Covered

security advisory denial of service gentoo buffer overflow arbitrary code execution

Synopsis

A heap-based buffer overflow in ldns might allow remote attackers to execute arbitrary code or cause a Denial of Service condition.

Background

ldns is a fast DNS library with the goal to simplify DNS programming and to allow developers to easily create software conforming to current RFCs and Internet drafts.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-libs/ldns < 1.6.11 >= 1.6.11

Impact

===== A remote attacker could execute arbitrary code or cause a Denial of Service condition with a crafted Resource Record.

Workaround

There is no known workaround at this time.