CVE-2015-1379: Input Validation
First published: Mon Jan 26 2015(Updated: )
Gerhard Rieger reports: Socat security advisory 6 - Possible DoS with fork Overview socats signal handler implementations are not async-signal-safe and can cause crash or freeze of socat processes Vulnerability Id: (pending) Severity: Low Details Socats signal handler implementations are not asnyc-signal-safe. When a signal is triggered while the process is within a non async-signal-safe function the signal handler will call a non sync-signal-safe function too. POSIX specifies the behaviour in this situation as undefined. Dependend on involved functions, libraries, and operating system, the process can continue, freeze, or crash. Mostly this issue occurs when socat is in listening mode with fork option and a couple of child processes terminate at the same time. Testcase none Affected versions 1.0.0.0 - 1.7.2.4 2.0.0-b1 - 2.0.0-b7 Not affected or corrected versions 1.7.3.0 and later 2.0.0-b8 (to be released) and later Workaround none Download The updated sources can be downloaded from: <a href="http://www.dest-unreach.org/socat/download/socat-1.7.3.0.tar.gz">http://www.dest-unreach.org/socat/download/socat-1.7.3.0.tar.gz</a> Credits Credits to Peter Lobsinger
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/socat | <1.7.3.0 | 1.7.3.0 |
| Dest-unreach Socat | <=1.7.2.4 | |
| Dest-unreach Socat | =2.0.0-b8 |
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Reference Links
- http://www.dest-unreach.org/socat/download/socat-1.7.3.0.tar.gz
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1185942
- https://access.redhat.com/security/cve/CVE-2015-1379
- http://seclists.org/oss-sec/2015/q1/284
- https://access.redhat.com/security/updates/classification/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1185945
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1185946
- https://bugzilla.redhat.com/show_bug.cgi?id=1185711
- http://www.dest-unreach.org/socat/
- http://www.openwall.com/lists/oss-security/2015/01/27/19
- http://www.openwall.com/lists/oss-security/2015/04/06/4
- http://www.securityfocus.com/bid/72321
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