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Gentoo Linux Security Advisory GLSA 200409-13 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: LHa: Multiple vulnerabilities |
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Date: September 08, 2004 |
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Bugs: #62618 |
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ID: 200409-13 |
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Synopsis |
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======== |
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|
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Several buffer overflows and a shell metacharacter command execution |
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vulnerability have been found in LHa. These vulnerabilities can be |
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used to execute arbitrary code. |
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|
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Background |
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========== |
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|
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LHa is a console-based program for packing and unpacking LHarc |
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archives. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 app-arch/lha <= 114i-r3 >= 114i-r4 |
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Description |
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=========== |
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|
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The command line argument as well as the archive parsing code of LHa |
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lack sufficient bounds checking. Furthermore, a shell meta character |
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command execution vulnerability exists in LHa, since it does no proper |
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filtering on directory names. |
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|
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Impact |
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====== |
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|
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Using a specially crafted command line argument or archive, an attacker |
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can cause a buffer overflow and could possibly run arbitrary code. The |
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shell meta character command execution could lead to the execution of |
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arbitrary commands by an attacker using directories containing shell |
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meta characters in their names. |
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|
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Workaround |
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========== |
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|
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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All LHa users should upgrade to the latest stable version: |
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# emerge sync |
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# emerge -pv ">=app-arch/lha-114i-r4" |
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# emerge ">=app-arch/lha-114i-r4" |
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|
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References |
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========== |
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|
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[ 1 ] CAN-2004-0694 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0694 |
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[ 2 ] CAN-2004-0745 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0745 |
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[ 3 ] CAN-2004-0769 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0769 |
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[ 4 ] CAN-2004-0771 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0771 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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|
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http://security.gentoo.org/glsa/glsa-200409-13.xml |
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|
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2004 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/1.0 |
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