drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen beliebiger Kommandos in RAR und UnRAR
Name: |
Ausführen beliebiger Kommandos in RAR und UnRAR |
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ID: |
201708-05 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Mo, 21. August 2017, 08:21 |
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Referenzen: |
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6706 |
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Applikationen: |
RAR, RAR |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --bLdD0dNFGjUKClm8TKrNm80Nv29ouIW8c Content-Type: multipart/mixed; boundary="vLGphvrs1Qc1fTBGqACs6KS9N3O3NrlHn"; protected-headers="v1" From: Thomas Deutschmann <whissi@gentoo.org> Reply-To: security@gentoo.org To: gentoo-announce@lists.gentoo.org Message-ID: <88b51cb0-1938-0ddb-d906-8aa9d7c422c6@gentoo.org> Subject: [ GLSA 201708-05 ] RAR and UnRAR: User-assisted execution of arbitrary code
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201708-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: RAR and UnRAR: User-assisted execution of arbitrary code Date: August 21, 2017 Bugs: #622342, #622382 ID: 201708-05
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Synopsis ========
An integer overflow in RAR and UnRAR might allow remote attackers to execute arbitrary code.
Background ==========
RAR and UnRAR provide command line interfaces for compressing and decompressing RAR files.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/rar < 5.5.0_beta4_p20170628>= 5.5.0_beta4_p20170628 2 app-arch/unrar < 5.5.5 >= 5.5.5 ------------------------------------------------------------------- 2 affected packages
Description ===========
A VMSF_DELTA memory corruption was discovered in which an integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the "DestPos" variable which allows writing out of bounds when setting Mem[DestPos].
Impact ======
A remote attacker, by enticing a user to open a specially crafted archive, could execute arbitrary code with the privileges of the process.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All RAR users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot -v ">=app-arch/rar-5.5.0_beta4_p20170628"
All UnRAR users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/unrar-5.5.5"
References ==========
[ 1 ] CVE-2012-6706 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6706
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201708-05
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 2017 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/2.5
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