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Przemyslaw Frasunek

FreeBSD Security Advisory FreeBSD-SA-10:09.pseudofs

Topic:          Spurious mutex unlock

Category:       core
Module:         pseudofs
Announced:      2010-11-10
Credits:        Przemyslaw Frasunek
Affects:        FreeBSD 7.x prior to 7.3-RELEASE, 8.x prior to 8.0-RC1
Corrected:      2009-09-05 13:10:54 UTC (RELENG_8, 8.0-RC1)
                2009-09-05 13:31:16 UTC (RELENG_7, 7.2-STABLE)
                2010-11-10 23:36:13 UTC (RELENG_7_1, 7.1-RELEASE-p15)
CVE Name:       CVE-2010-4210

FreeBSD Security Advisory FreeBSD-SA-09:14.devfs

Topic:          Devfs / VFS NULL pointer race condition

Category:       core
Module:         kern
Announced:      2009-10-02
Credits:        Przemyslaw Frasunek
Affects:        FreeBSD 6.x and 7.x
Corrected:      2009-05-18 10:41:59 UTC (RELENG_7, 7.2-STABLE)
                2009-10-02 18:09:56 UTC (RELENG_7_2, 7.2-RELEASE-p4)
                2009-10-02 18:09:56 UTC (RELENG_7_1, 7.1-RELEASE-p8)
                2009-10-02 18:09:56 UTC (RELENG_6, 6.4-STABLE)

Re: COSEINC Linux Advisory #2: IA32 System Call Emulation Vulnerability

 * exploit for x86_64 linux kernel ia32syscall emulation
 * bug, discovered by Wojciech Purczynski <cliph@isec.pl>
 *
 * by
 * Robert Swiecki <robert@swiecki.net>
 * Przemyslaw Frasunek <venglin@freebsd.lublin.pl>
 * Pawel Pisarczyk <pawel@immos.com.pl>
 * of ATM-Lab http://www.atm-lab.pl
 */

#include <sys/types.h>

Re: [Full-disclosure] FreeBSD <= 6.1 kqueue() NULL pointer dereference

Przemyslaw Frasunek pisze:
> FreeBSD <= 6.1 suffers from classical check/use race condition on SMP

There is yet another kqueue related vulnerability. It affects 6.x, up to
6.4-STABLE. FreeBSD security team was notified on 29th Aug, but there is no
response until now, so I won't publish any details.

Sucessful exploitation yields local root and allows to exit from jail. For now,
you can see demo on:


FreeBSD Security Advisory FreeBSD-SA-09:13.pipe

Topic:          kqueue pipe race conditions
Category:       core
Module:         kern
Announced:      2009-10-02
Credits:        Przemyslaw Frasunek
Affects:        FreeBSD 6.x
Corrected:      2009-10-02 18:09:56 UTC (RELENG_6, 6.4-STABLE)
                2009-10-02 18:09:56 UTC (RELENG_6_4, 6.4-RELEASE-p7)
                2009-10-02 18:09:56 UTC (RELENG_6_3, 6.3-RELEASE-p13)


CONFidence 2.0 schedule online - last time to register

    * Gynvael Coldwind
    * Claudio Criscione
    * Bernardo Damele
    * Nick DePetrillo
    * Leonardo NVE Egea
    * Przemysław Frasunek
    * Sandro Gauci
    * Brad ‘RenderMan’ Haines
    * Mario Heiderich
    * Nadia Heninger
    * Gareth Heyes



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