You are here
Home > Preporuke > Ranjivost programskog paketa bsd-mailx

Ranjivost programskog paketa bsd-mailx

—–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

Top
More in Preporuke
Sigurnosni nedostaci programskog paketa tcpdump

Otkriveni su sigurnosni nedostaci u programskom paketu tcpdump. Otkriveni nedostaci potencijalnim napadačima omogućuju izvođenje napada uskraćivanjem usluge, izazivanje gubitaka paketa...

Close