drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen beliebiger Kommandos in bsd-mailx
Name: |
Ausführen beliebiger Kommandos in bsd-mailx |
|
ID: |
DSA-3104-1 |
|
Distribution: |
Debian |
|
Plattformen: |
Debian wheezy |
|
Datum: |
Di, 16. Dezember 2014, 22:40 |
|
Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7844 |
|
Applikationen: |
bsd-mailx |
|
Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
- ------------------------------------------------------------------------- Debian Security Advisory DSA-3104-1 security@debian.org http://www.debian.org/security/ Florian Weimer December 16, 2014 http://www.debian.org/security/faq - -------------------------------------------------------------------------
Package : bsd-mailx CVE ID : CVE-2014-7844
It was discovered that bsd-mailx, an implementation of the "mail" command, had an undocumented feature which treats syntactically valid email addresses as shell commands to execute.
Users who need this feature can re-enable it using the "expandaddr" in an appropriate mailrc file. This update also removes the obsolete -T option. An older security vulnerability, CVE-2004-2771, had already been addressed in the Debian's bsd-mailx package.
Note that this security update does not remove all mailx facilities for command execution, though. Scripts which send mail to addresses obtained from an untrusted source (such as a web form) should use the "--" separator before the email addresses (which was fixed to work properly in this update), or they should be changed to invoke "mail -t" or "sendmail -i -t" instead, passing the recipient addresses as part of the mail header.
For the stable distribution (wheezy), this problem has been fixed in version 8.1.2-0.20111106cvs-1+deb7u1.
We recommend that you upgrade your bsd-mailx packages.
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux)
iQEcBAEBAgAGBQJUkHo/AAoJEL97/wQC1SS+iy8H/0GoPvWfS6EJ+7raoCyZBZqi RKhs0SsZ9dAGR+fp+LIJAQY5Xk+5MDJT5kS4dvgo3dbe1BuaGQaYlcs/1KwBD/ai BgMO4n/061BD/Cg5kfiUvF8ZvLYLgcr/EJ+B9ZQWxzqk1FzWcT9WdOAJfkMr3dDT wBR4LTV/CnPKvDbaywnWwvbR48i7LeE+W4ajO6IR4W7UWxBqYwJVyC1DZnMQYdiF qBGqgFpmTWtcTSZLHi+c8iQN8gs6iEG/yggUTjLJUe1bGxl+oRrXEnvyuvKmK6YS 0mZPImlkyTpj+bMhp+MmShqBAGYO3XpkZAfxmlDqKkzBHeOQjzxMIJ/5glmNYPY= =2oBZ -----END PGP SIGNATURE-----
-- To UNSUBSCRIBE, email to debian-security-announce-REQUEST@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org Archive: https://lists.debian.org/87zjanpjgq.fsf@mid.deneb.enyo.de
|
|
|
|