drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Pufferüberlauf in ncompress
Name: |
Pufferüberlauf in ncompress |
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ID: |
200410-08 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
So, 10. Oktober 2004, 13:00 |
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Referenzen: |
https://www.kb.cert.org/vuls/id/176363 |
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Applikationen: |
ncompress |
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Originalnachricht |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200410-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: ncompress: Buffer overflow Date: October 09, 2004 Bugs: #66251 ID: 200410-08
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Synopsis ========
compress and uncompress, which could be used by daemon programs, contain a buffer overflow that could lead to remote execution of arbitrary code with the rights of the daemon process.
Background ==========
ncompress is a utility handling compression and decompression of Lempel-Ziv archives, compatible with the original *nix compress and uncompress utilities (.Z extensions).
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/ncompress <= 4.2.4 >= 4.2.4-r1
Description ===========
compress and uncompress do not properly check bounds on command line options, including the filename. Large parameters would trigger a buffer overflow.
Impact ======
By supplying a carefully crafted filename or other option, an attacker could execute arbitrary code on the system. A local attacker could only execute code with his own rights, but since compress and uncompress are called by various daemon programs, this might also allow a remote attacker to execute code with the rights of the daemon making use of ncompress.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All ncompress users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=app-arch/ncompress-4.2.4-r1" # emerge ">=app-arch/ncompress-4.2.4-r1"
References ==========
[ 1 ] US-CERT Vulnerability Note VU#176363 http://www.kb.cert.org/vuls/id/176363
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200410-08.xml
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 http://bugs.gentoo.org.
License =======
Copyright 2004 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.
http://creativecommons.org/licenses/by-sa/1.0
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