GLSA 201903-09: GNU C Library: Arbitrary descriptor allocation

Severity:normal
Title:GNU C Library: Arbitrary descriptor allocation
Date:03/14/2019
Bugs: #617938
ID:201903-09

Synopsis

A vulnerability in the GNU C Library could result in a Denial of Service condition.

Background

The GNU C library is the standard C library used by Gentoo Linux systems.

Affected packages

Package Vulnerable Unaffected Architecture(s)
sys-libs/glibc < 2.26.0 >= 2.26.0 All supported architectures

Description

A vulnerability was discovered in the GNU C Library functions xdr_bytes and xdr_string.

Impact

A remote attacker, by sending a crafted UDP packet, could cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All GNU C Library users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-libs/glibc-2.26.0"
    

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201903-09.xml

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.

License

Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

Thank you!