drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen beliebiger Kommandos in PulseAudio
Name: |
Ausführen beliebiger Kommandos in PulseAudio |
|
ID: |
200907-13 |
|
Distribution: |
Gentoo |
|
Plattformen: |
Keine Angabe |
|
Datum: |
Do, 16. Juli 2009, 16:36 |
|
Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1894 |
|
Applikationen: |
PulseAudio |
|
Originalnachricht |
--nextPart1550617.7ffAbpqmEe Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200907-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High Title: PulseAudio: Local privilege escalation Date: July 16, 2009 Bugs: #276986 ID: 200907-13
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis ========
A vulnerability in PulseAudio may allow a local user to execute code with escalated privileges.
Background ==========
PulseAudio is a network-enabled sound server with an advanced plug-in system.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-sound/pulseaudio < 0.9.9-r54 >= 0.9.9-r54
Description ===========
Tavis Ormandy and Julien Tinnes of the Google Security Team discovered that the pulseaudio binary is installed setuid root, and does not drop privileges before re-executing itself. The vulnerability has independently been reported to oCERT by Yorick Koster.
Impact ======
A local user who has write access to any directory on the file system containing /usr/bin can exploit this vulnerability using a race condition to execute arbitrary code with root privileges.
Workaround ==========
Ensure that the file system holding /usr/bin does not contain directories that are writable for unprivileged users.
Resolution ==========
All PulseAudio users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot -v ">=media-sound/pulseaudio-0.9.9-r54"
References ==========
[ 1 ] CVE-2009-1894 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1894
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200907-13.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 2009 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
--nextPart1550617.7ffAbpqmEe Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part.
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (GNU/Linux)
iQIcBAABCAAGBQJKXzcVAAoJECaaHo/OfoM5BYIQALWTGc3tL8EmtudRhf79AzxT 86pBUn2ZUTsyn7vTAn5KRJxS9wNbsu7pVGXuAD4UcIQ9DtfXHx7Q6j+bSfC/NFYu Q1XrZIxZXWxb4LuoVE5ltyta5ayL/TlAFKXZ7M5QXYEVSOE/p3jUpseGtS8Qd/dS nLBcauxxKALRwnwE5fN131UTpi+SdxdArHypJdr35YmW3Llb3vAd3BHTE41m5+7k A2Pk6/Jd/jam5Otd+k3UyoIuSsArPSuf/9A1ET1gAUSaQMX3wnaK+PMbGEVkUunV TyI3ui1f2yUusYMroc8/OgmnihiF+SK3WPZtXbwj105oFgrgDkoiWVI7UDuc6AMY fNGF9L2F4dYvEtFuiAleG+EKgbxmYqM1xoMQt7D/ojrsIYA0aEuzkofnHEjMKGRe OdutN0pwSo/8h7er3H5/uRAlTu2ugBP40MsXeV5pkEqkdiTmjUF1DG9mt3tSqVaK hF6SY2ETQFyhse8dTv5xlg7w27tOMUArz7BcMuFlnJXy/TndVDg4nQD+Uur6ub00 zbPwVefK9uwA4ee1722G2a+Wl50hT90QXZOEciuj/pGZJp5A1H0BQxIFhKe84RG2 g5KPgxRhKDIrG/sDbVXdPD/sgid6MgfieSZb99cH7TKYYLl22vCYVPB49mWKvnht kMh0Br1N6FD6J9BcS63v =ygDr -----END PGP SIGNATURE-----
--nextPart1550617.7ffAbpqmEe--
|
|
|
|