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Gentoo Linux Security Advisory                           GLSA 200611-24
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: LHa: Multiple vulnerabilities
      Date: November 28, 2006
      Bugs: #151252
        ID: 200611-24

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Synopsis
=======
LHa is affected by several vulnerabilities including the remote
execution of arbitrary code.

Background
=========
LHa is a console-based program for packing and unpacking LHarc
archives.

Affected packages
================
    -------------------------------------------------------------------
     Package       /  Vulnerable  /                         Unaffected
    -------------------------------------------------------------------
  1  app-arch/lha      < 114i-r6                            >= 114i-r6

Description
==========
Tavis Ormandy of the Google Security Team discovered several
vulnerabilities in the LZH decompression component used by LHa. The
make_table function of unlzh.c contains an array index error and a
buffer overflow vulnerability. The build_tree function of unpack.c
contains a buffer underflow vulnerability. Additionally, unlzh.c
contains a code that could run in an infinite loop.

Impact
=====
By enticing a user to uncompress a specially crafted archive, a remote
attacker could cause a Denial of Service by CPU consumption or execute
arbitrary code with the rights of the user running the application.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All LHa users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-arch/lha-114i-r6"

References
=========
  [ 1 ] CVE-2006-4335
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4335
  [ 2 ] CVE-2006-4336
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4336
  [ 3 ] CVE-2006-4337
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4337
  [ 4 ] CVE-2006-4338
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4338

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

  https://security.gentoo.org/glsa/200611-24

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 2006 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-200611-24: LHa: Multiple vulnerabilities

LHa is affected by several vulnerabilities including the remote execution of arbitrary code.

Summary

Gentoo Linux Security Advisory GLSA 200611-24 https://security.gentoo.org/ Severity: Normal Title: LHa: Multiple vulnerabilities Date: November 28, 2006 Bugs: #151252 ID: 200611-24

Synopsis ======= LHa is affected by several vulnerabilities including the remote execution of arbitrary code.
Background ========= LHa is a console-based program for packing and unpacking LHarc archives.
Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/lha < 114i-r6 >= 114i-r6
========== Tavis Ormandy of the Google Security Team discovered several vulnerabilities in the LZH decompression component used by LHa. The make_table function of unlzh.c contains an array...

Read the Full Advisory

Resolution

References


Availability

Concerns

Severity

Synopsis

Background

Affected Packages

Impact

Workaround

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