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Gentoo Linux Security Advisory GLSA 200410-01 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: sharutils: Buffer overflows in shar.c and unshar.c |
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Date: October 01, 2004 |
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Bugs: #65773 |
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ID: 200410-01 |
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Synopsis |
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======== |
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|
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sharutils contains two buffer overflow vulnerabilities that could lead |
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to arbitrary code execution. |
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Background |
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========== |
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|
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sharutils contains utilities to manage shell 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/sharutils <= 4.2.1-r9 >= 4.2.1-r10 |
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|
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Description |
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=========== |
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|
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sharutils contains two buffer overflows. Ulf Harnhammar discovered a |
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buffer overflow in shar.c, where the length of data returned by the wc |
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command is not checked. Florian Schilhabel discovered another buffer |
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overflow in unshar.c. |
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|
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Impact |
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====== |
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|
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An attacker could exploit these vulnerabilities to execute arbitrary |
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code as the user running one of the sharutils programs. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All sharutils users should upgrade to the latest version: |
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# emerge sync |
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# emerge -pv ">=app-arch/sharutils-4.2.1-r10" |
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# emerge ">=app-arch/sharutils-4.2.1-r10" |
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|
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References |
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========== |
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[ 1 ] Debian Bug #265904 |
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http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=265904 |
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Availability |
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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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http://security.gentoo.org/glsa/glsa-200410-01.xml |
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Concerns? |
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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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License |
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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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