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Gentoo Linux Security Advisory                           GLSA 202003-31
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: gdb: Buffer overflow
     Date: March 15, 2020
     Bugs: #690582
       ID: 202003-31

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Synopsis
========

A buffer overflow in gdb might allow a remote attacker to cause a
Denial of Service condition.

Background
==========

gdb is the GNU project's debugger, facilitating the analysis and
debugging of applications. The BFD library provides a uniform method of
accessing a variety of object file formats.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-devel/gdb                 < 9.1                       >= 9.1

Description
===========

It was discovered that gdb didn't properly validate the ELF section
sizes from input file.

Impact
======

A remote attacker could entice a user to open a specially crafted ELF
binary using gdb, possibly resulting in information disclosure or a
Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All gdb users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-devel/gdb-9.1"

References
==========

[ 1 ] CVE-2019-1010180
      https://nvd.nist.gov/vuln/detail/CVE-2019-1010180

Availability
============

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

 https://security.gentoo.org/glsa/202003-31

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 2020 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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