VLC Media Player USF buffer overflow
| vlcmediaplayer-usf-bo (65029) |  High Risk |
Description:
VLC Media Player is vulnerable to a buffer overflow, caused by improper bounds checking by the StripTags() function within the USF and Text subtitles decoders. By persuading a victim to open a specially-crafted media file, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
*CVSS:
| Base Score: | 6.8 |
| Access Vector: | Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.3 |
| Exploitability: | Proof-of-Concept |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Apply the patch for this vulnerability, available from the VideoLAN GIT Repository. See References.
References:
- Offensive Security Exploit Database [02-03-2011]: VLC Media Player Subtitle StripTags() Function Memory Corruption.
- VideoLAN GIT Repository: VideoLAN.
- VideoLAN Web site: VideoLAN: Free Multimedia Solutions.
- vlc-devel Mailing List, Sun Jan 16 11:58:17 CET 2011: Subtitle StripTags heap corruption, potentially exploitable. Patch included.
- BID-46008: VLC Media Player Subtitle 'StripTags()' Function Memory Corruption Vulnerability
- CVE-2011-0522: The StripTags function in (1) the USF decoder (modules/codec/subtitles/subsdec.c) and (2) the Text decoder (modules/codec/subtitles/subsusf.c) in VideoLAN VLC Media Player 1.1 before 1.1.6-rc allows remote attackers to execute arbitrary code via a subtitle with an opening < without a closing > in an MKV file, which triggers heap memory corruption, as demonstrated using refined-australia-blu720p-sample.mkv.
- OSVDB ID: 72905: VLC Media Player USF Decoder modules/codec/subtitles/subsdec.c StripTags Function MKV File Subtitle Arbitrary Code Execution
- OSVDB ID: 72906: VLC Media Player Text Decoder modules/codec/subtitles/subsusf.c StripTags Function MKV File Subtitle Arbitrary Code Execution
- VUPEN/ADV-2011-0225: VLC Media Player USF and Text Subtitles Decoders Buffer Overflow
Platforms Affected:
- VideoLAN VLC Media Player 1.1.5
Reported:
Jan 16, 2011
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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 IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.