Date: Mon, 06 Apr 2015 18:57:56 +0200 From: Gerhard Rieger <gerhard@...t-unreach.org> To: oss-security@...ts.openwall.com Subject: Socat security advisory 6 - Possible DoS with fork (update: CVE-Id: CVE-2015-1379; fix for version 2) 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: CVE-2015-1379. 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 22.214.171.124 - 126.96.36.199 2.0.0-b1 - 2.0.0-b7 Not affected or corrected versions 188.8.131.52 and later 2.0.0-b8 and later Workaround none Download The updated sources can be downloaded from: http://www.dest-unreach.org/socat/download/socat-184.108.40.206.tar.gz http://www.dest-unreach.org/socat/download/socat-2.0.0-b8.tar.gz Credits Credits to Peter Lobsinger Download attachment "signature.asc" of type "application/pgp-signature" (474 bytes)
Powered by blists - more mailing lists
Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.