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Gentoo Linux Security Advisory GLSA 200410-26 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: socat: Format string vulnerability |
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Date: October 25, 2004 |
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Bugs: #68547 |
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ID: 200410-26 |
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Synopsis |
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======== |
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|
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socat contains a format string vulnerability that can potentially lead |
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to remote or local execution of arbitrary code with the privileges of |
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the socat process. |
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|
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Background |
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========== |
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|
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socat is a multipurpose bidirectional relay, similar to netcat. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 net-misc/socat < 1.4.0.3 >= 1.4.0.3 |
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|
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Description |
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=========== |
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|
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socat contains a syslog() based format string vulnerablility in the |
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'_msg()' function of 'error.c'. Exploitation of this bug is only |
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possible when socat is run with the '-ly' option, causing it to log |
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messages to syslog. |
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|
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Impact |
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====== |
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|
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Remote exploitation is possible when socat is used as a HTTP proxy |
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client and connects to a malicious server. Local privilege escalation |
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can be achieved when socat listens on a UNIX domain socket. Potential |
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execution of arbitrary code with the privileges of the socat process is |
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possible with both local and remote exploitations. |
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|
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Workaround |
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========== |
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|
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Disable logging to syslog by not using the '-ly' option when starting |
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socat. |
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Resolution |
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========== |
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All socat users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-misc/socat-1.4.0.3" |
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|
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References |
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========== |
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|
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[ 1 ] socat Security Advisory |
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http://www.dest-unreach.org/socat/advisory/socat-adv-1.html |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200410-26.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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Copyright 2004 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/1.0 |
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