Xine-lib DVD Subpicture Decoder Heap Overflow Vulnerability

BID:11205

Info

Xine-lib DVD Subpicture Decoder Heap Overflow Vulnerability

Bugtraq ID: 11205
Class: Boundary Condition Error
CVE: CVE-2004-1379
Remote: Yes
Local: No
Published: Sep 16 2004 12:00AM
Updated: Jul 12 2006 04:38PM
Credit: Announced by Michael Roitzsch <[email protected]>.
Vulnerable: xine xine-lib 0.9.8
xine xine-lib 0.9.8
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
xine xine-lib 1-rc5
xine xine-lib 1-rc4
xine xine-lib 1-rc3c
+ Slackware Linux 9.1
+ Slackware Linux -current
 xine xine-lib 1-rc3b
xine xine-lib 1-rc3a
xine xine-lib 1-rc3
xine xine-lib 1-rc2
xine xine-lib 1-rc1
xine xine-lib 1-rc0
xine xine-lib 1-beta9
xine xine-lib 1-beta8
xine xine-lib 1-beta7
xine xine-lib 1-beta6
xine xine-lib 1-beta5
xine xine-lib 1-beta4
xine xine-lib 1-beta3
xine xine-lib 1-beta2
xine xine-lib 1-beta12
xine xine 1-rc5
xine xine 1-rc4
xine xine 1-rc3b
xine xine 1-rc3a
xine xine 1-rc3
xine xine 1-rc2
xine xine 1-rc1
xine xine 1-rc1
xine xine 1-rc0a
xine xine 1-rc0
xine xine 1-beta9
xine xine 1-beta8
xine xine 1-beta7
xine xine 1-beta6
xine xine 1-beta5
xine xine 1-beta4
xine xine 1-beta3
xine xine 1-beta2
xine xine 1-beta12
xine xine 1-beta11
xine xine 1-beta10
xine xine 1-beta1
xine xine 1-alpha
Redhat Linux 7.3 i686
Redhat Linux 7.3 i386
Redhat Linux 7.3
Not Vulnerable: xine xine-lib 1-rc6a
xine xine 1-rc6a

Discussion

Xine-lib DVD Subpicture Decoder Heap Overflow Vulnerability

A buffer overflow in the DVD subpicture component, exploitable through malicious DVD or MPEG content, may allow for the execution of arbitrary code. The Xine-lib decoder converts subpicture data into an internal representation and stores it in dynamically allocated memory. A flaw in the calculation of required buffer space may result in the allocation of a buffer that is too small. Consequently, neighboring data in the heap may be corrupted when data is written to the buffer.

Attackers could exploit this vulnerability to write arbitrary words to nearly arbitrary locations in memory. The Linux and Windows dynamic memory-allocation subsystems may be more susceptible than BSD-based systems.

Exploit / POC

Xine-lib DVD Subpicture Decoder Heap Overflow Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected]

Solution / Fix

Xine-lib DVD Subpicture Decoder Heap Overflow Vulnerability

Solution:
The vulnerability is eliminated in version 1-rc6. The author has also made a source-code patch available:

http://cvs.sourceforge.net/viewcvs.py/xine/xine-lib/src/libspudec/spu.c?r1=1.77&r2=1.78&diff_format=u

Please see the referenced vendor advisories for more information.


xine xine-lib 1-rc2

xine xine-lib 1-rc3a

xine xine-lib 1-rc5

xine xine-lib 1-rc3b

xine xine 1-rc2

xine xine 1-rc3b

xine xine 1-rc3a

xine xine-lib 1-rc4

xine xine 1-rc3

xine xine-lib 1-rc3c

xine xine 1-rc4

xine xine-lib 1-rc3

xine xine 1-rc5

References

Xine-lib DVD Subpicture Decoder Heap Overflow Vulnerability

References:

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