PulseAudio assert function denial of service
| pulseaudio-assert-dos (33315) |  Low Risk |
Description:
PulseAudio (formerly Polypaudio) is vulnerable to a denial of service, caused by an unspecified vulnerability in the assert function. A remote attacker could exploit this vulnerability to crash the server.
Platforms Affected:
- Canonical, Ubuntu 7.04
- FreeBSD, FreeBSD
- MandrakeSoft, Mandrake Linux 2007.1 X86_64
- MandrakeSoft, Mandrake Linux 2007.1
- PulseAudio, PulseAudio 0.9.5
Remedy:
For Ubuntu Linux:
Refer to USN-465-1 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Denial of Service
References:
- Luigi Auriemma Advisory 29 Mar 2007, Pulseaudio 0.9.5 (rev 1437) termination at http://aluigi.altervista.org/adv/pulsex-adv.txt.
- PulseAudio Web site, PulseAudio - Trac at http://www.pulseaudio.org/.
- BID-23240: PulseAudio Assert() Remote Denial of Service Vulnerability
- CVE-2007-1804: PulseAudio 0.9.5 allows remote attackers to cause a denial of service (daemon crash) via (1) a PA_PSTREAM_DESCRIPTOR_LENGTH value of FRAME_SIZE_MAX_ALLOW sent on TCP port 9875, which triggers a p->export assertion failure in do_read; (2) a PA_PSTREAM_DESCRIPTOR_LENGTH value of 0 sent on TCP port 9875, which triggers a length assertion failure in pa_memblock_new; or (3) an empty packet on UDP port 9875, which triggers a t assertion failure in pa_sdp_parse; and allows remote authenticated users to cause a denial of service (daemon crash) via a crafted packet on TCP port 9875 that (4) triggers a maxlength assertion failure in pa_memblockq_new, (5) triggers a size assertion failure in pa_xmalloc, or (6) plays a certain sound file.
- FrSIRT/ADV-2007-1214: PulseAudio Malformed Packets Handling Multiple Remote Denial of Service Vulnerabilities
- MDVSA-2008:065: Updated pulseaudio packages fix denial of service vulnerabilities
- SUSE-SR:2007:013: SUSE Security Summary Report
- USN-465-1: PulseAudio vulnerability
Reported:
Mar 29, 2007
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved worldwide.
For corrections or additions please email xforce@iss.net