Gentoo: GLSA-202208-21: libebml: Heap buffer overflow vulnerability...
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 202208-21
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: High
    Title: libebml: Heap buffer overflow vulnerability
     Date: August 14, 2022
     Bugs: #772272
       ID: 202208-21

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A heap-based buffer overflow in libeml might allow attackers to execute
arbitrary code.

Background
==========

libebml is a C++ library to parse EBML files.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-libs/libebml           < 1.4.2                      >= 1.4.2

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

On 32bit builds of libebml, the length of a string is miscalculated,
potentially leading to an exploitable heap overflow.

Impact
======

An attacker able to provide arbitrary input to libebml could achieve arbitrary code execution.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

Users of libebml on 32 bit architectures should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-libs/libebml-1.4.2"

References
==========

[ 1 ] CVE-2021-3405
      https://nvd.nist.gov/vuln/detail/CVE-2021-3405

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

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

 https://security.gentoo.org/glsa/202208-21

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
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2022 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

Gentoo: GLSA-202208-21: libebml: Heap buffer overflow vulnerability

Summary

On 32bit builds of libebml, the length of a string is miscalculated, potentially leading to an exploitable heap overflow.

Resolution

Users of libebml on 32 bit architectures should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libebml-1.4.2"

References

[ 1 ] CVE-2021-3405 https://nvd.nist.gov/vuln/detail/CVE-2021-3405

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202208-21

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 [email protected] or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity
Severity: High
Title: libebml: Heap buffer overflow vulnerability
Date: August 14, 2022
Bugs: #772272
ID: 202208-21

Synopsis

A heap-based buffer overflow in libeml might allow attackers to execute arbitrary code.

Background

libebml is a C++ library to parse EBML files.

Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libebml < 1.4.2 >= 1.4.2

Impact

An attacker able to provide arbitrary input to libebml could achieve arbitrary code execution.

Workaround

There is no known workaround at this time.

We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.