Date: Mon, 25 Oct 2004 12:10:05 -0400
From: Luke Macken <[email protected]>
To: [email protected]Subject: [ GLSA 200410-26 ] socat: Format string vulnerability
Cc: [email protected], [email protected],
[email protected]
--=-cAfYkASRtrlyww7l3vXE
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200410-26
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: socat: Format string vulnerability
Date: October 25, 2004
Bugs: #68547
ID: 200410-26
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D
socat contains a format string vulnerability that can potentially lead
to remote or local execution of arbitrary code with the privileges of
the socat process.
Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
socat is a multipurpose bidirectional relay, similar to netcat.
Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/socat < 1.4.0.3 >=3D 1.4.0.3
Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
socat contains a syslog() based format string vulnerablility in the
'_msg()' function of 'error.c'. Exploitation of this bug is only
possible when socat is run with the '-ly' option, causing it to log
messages to syslog.
Impact
=3D=3D=3D=3D=3D=3D
Remote exploitation is possible when socat is used as a HTTP proxy
client and connects to a malicious server. Local privilege escalation
can be achieved when socat listens on a UNIX domain socket. Potential
execution of arbitrary code with the privileges of the socat process is
possible with both local and remote exploitations.
Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Disable logging to syslog by not using the '-ly' option when starting
socat.
Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All socat users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dnet-misc/socat-1.4.0.3"
References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] socat Security Advisory
http://www.dest-unreach.org/socat/advisory/socat-adv-1.html
Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200410-26.xml
Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D
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
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=3D=3D=3D=3D=3D=3D=3D
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
--=-cAfYkASRtrlyww7l3vXE
Content-Type: application/pgp-signature; name=signature.asc
Content-Description: This is a digitally signed message part
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.6 (GNU/Linux)
iD8DBQBBfSVdRsm3eDkOu7kRAqwLAKCXUAuZ/AJ4bdTohy6HF2+iqqc1eQCfX0np
FgTOdLL0crpyupBFYm8yh/8=
=od8O
-----END PGP SIGNATURE-----
--=-cAfYkASRtrlyww7l3vXE--
