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Gentoo Linux Security Advisory GLSA 200610-03 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: ncompress: Buffer Underflow |
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Date: October 06, 2006 |
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Bugs: #141728 |
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ID: 200610-03 |
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Synopsis |
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======== |
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|
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A buffer underflow vulnerability has been reported in ncompress |
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allowing for the execution of arbitrary code. |
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Background |
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========== |
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|
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ncompress is a suite of utilities to create and extract |
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Lempel-Ziff-Welch (LZW) compressed archives. |
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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/ncompress < 4.2.4.1 >= 4.2.4.1 |
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Description |
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=========== |
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|
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Tavis Ormandy of the Google Security Team discovered a static buffer |
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underflow in ncompress. |
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Impact |
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====== |
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An attacker could create a specially crafted LZW archive, that when |
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decompressed by a user or automated system would result in the |
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execution of arbitrary code with the permissions of the user invoking |
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the utility. |
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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 ncompress users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-arch/ncompress-4.2.4.1" |
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References |
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========== |
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[ 1 ] CVE-2006-1168 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1168 |
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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-200610-03.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 2006 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/2.5 |
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