Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Tue, 27 Jan 2015 13:21:21 -0500 (EST)
To: Gerhard Rieger <>
Subject: Re: Socat security advisory 6 - Possible DoS with

> 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
> -
>  2.0.0-b1 - 2.0.0-b7
> Not affected or corrected versions
> and later
>  2.0.0-b8 (to be released) and later
> Workaround
>  none
> Download
>  The updated sources can be downloaded from:
> Credits
>   Credits to Peter Lobsinger

Use CVE-2015-1379.


CVE assignment team, MITRE CVE Numbering Authority M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through ]

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.