CVE-2008-3732 : Détail

CVE-2008-3732

16.77%V3
Network
2008-08-20
14h00 +00:00
2017-09-28
10h57 +00:00
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Descriptions du CVE

Integer overflow in the Open function in modules/demux/tta.c in VLC Media Player 0.8.6i allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted TTA file, which triggers a heap-based buffer overflow. NOTE: some of these details are obtained from third party information.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-189 Category : Numeric Errors
Weaknesses in this category are related to improper calculation or conversion of numbers.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C nvd@nist.gov

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.

Informations sur l'Exploit

Exploit Database EDB-ID : 6252

Date de publication : 2008-08-15 22h00 +00:00
Auteur : g_
EDB Vérifié : Yes

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - Orange Bat advisory - Name : VLC 0.8.6i Class : Heap overflow Published : 2008-08-16 Credit : g_ (g_ # orange-bat # com) - - Details - \modules\demux\tta.c #define TTA_FRAMETIME 1.04489795918367346939 . . . int i_seektable_size = 0, i; . . . /* Read the metadata */ es_format_Init( &fmt, AUDIO_ES, VLC_FOURCC( 'T', 'T', 'A', '1' ) ); fmt.audio.i_channels = GetWLE( &p_header[6] ); fmt.audio.i_bitspersample = GetWLE( &p_header[8] ); [1] fmt.audio.i_rate = GetDWLE( &p_header[10] ); p_sys->i_datalength = GetDWLE( &p_header[14] ); p_sys->i_framelength = TTA_FRAMETIME * fmt.audio.i_rate; [2] p_sys->i_totalframes = p_sys->i_datalength / p_sys->i_framelength + ((p_sys->i_datalength % p_sys->i_framelength) ? 1 : 0); p_sys->i_currentframe = 0; [3] i_seektable_size = sizeof(uint32_t)*p_sys->i_totalframes; p_seektable = (uint8_t *)malloc( i_seektable_size ); stream_Read( p_demux->s, p_seektable, i_seektable_size ); p_sys->pi_seektable = (uint32_t *)malloc(i_seektable_size); for( i = 0; i < p_sys->i_totalframes; i++ ) [4] p_sys->pi_seektable[i] = GetDWLE( &p_seektable[i*4] ); [1] - we can set i_rate to 1 [2] - i_framelength = 1 (look for constant definition, it's ~1), so i_totalframes = i_datalength [3] - because we can set i_datalength to 2^30 and bacause i_totalframes = i_datalength, multiplication will overflow [4] - i_totalframes is positive (highest bit not set), so this loop will spin 2^30 times, overwriting everything with data from the heap. unfortunate thing is we have little control over what is written. - - Proof of concept - http://www.orange-bat.com/adv/2008/vlc.dos.tta backup: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/6252.tta (2008-vlc.dos.tta) - - PGP - All advisories from Orange Bat are signed. You can find our public key here: http://www.orange-bat.com/g_.asc - - Disclaimer - This document and all the information it contains is provided "as is", without any warranty. Orange Bat is not responsible for the misuse of the information provided in this advisory. The advisory is provided for educational purposes only. Permission is hereby granted to redistribute this advisory, providing that no changes are made and that the copyright notices and disclaimers remain intact. (c) 2008 www.orange-bat.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) iEYEARECAAYFAkimwoYACgkQIUHRVUfOLgW8hgCgmPcqqIlcLQpmH8u6wB2fVOHs Zv4AoNNYWhzdknZOnPuChysoak1rMRsx =4K3f -----END PGP SIGNATURE----- # milw0rm.com [2008-08-16]

Products Mentioned

Configuraton 0

Videolan>>Vlc_media_player >> Version 0.8.6i

Références

https://www.exploit-db.com/exploits/6252
Tags : exploit, x_refsource_EXPLOIT-DB
http://www.securityfocus.com/bid/30718
Tags : vdb-entry, x_refsource_BID
http://secunia.com/advisories/31512
Tags : third-party-advisory, x_refsource_SECUNIA
http://security.gentoo.org/glsa/glsa-200809-06.xml
Tags : vendor-advisory, x_refsource_GENTOO
http://securityreason.com/securityalert/4170
Tags : third-party-advisory, x_refsource_SREASON
http://www.vupen.com/english/advisories/2008/2394
Tags : vdb-entry, x_refsource_VUPEN