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


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Gentoo Linux Security Advisory GLSA 201903-09
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https://security.gentoo.org/
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Severity: Normal
Title: GNU C Library: Arbitrary descriptor allocation
Date: March 14, 2019
Bugs: #617938
ID: 201903-09

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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

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Package / Vulnerable / Unaffected
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1 sys-libs/glibc 2.26.0=20

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

[ 1 ] CVE-2018-19591
https://nvd.nist.gov/vuln/detail/CVE-2018-19591

Availability

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/201903-09

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 2019 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.

https://creativecommons.org/licenses/by-sa/2.5

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