xine xine-lib demux_real.c real_parse_headers input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in xine xine-lib. This impacts the function real_parse_headers of the file demux_real.c. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2008-5243. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in xine xine-lib (Multimedia Player Software) (affected version not known). This vulnerability affects the function real_parse_headers of the file demux_real.c. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

The real_parse_headers function in demux_real.c in xine-lib 1.1.12, and other 1.1.15 and earlier versions, relies on an untrusted input length value to "reindex into an allocated buffer," which allows remote attackers to cause a denial of service (crash) via a crafted value, probably an array index error.

The bug was discovered 08/22/2008. The weakness was presented 11/25/2008 by Will Drewry with CERT (Website). The advisory is shared for download at redhat.com. This vulnerability was named CVE-2008-5243 since 11/25/2008. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 34133 (Fedora 9 : xine-lib-1.1.15-1.fc9 (2008-7512)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (44658), Tenable (34133), SecurityFocus (BID 30797†), OSVDB (47743†) and Secunia (SA31827†). See VDB-43304, VDB-45212, VDB-45207 and VDB-45206 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 34133
Nessus Name: Fedora 9 : xine-lib-1.1.15-1.fc9 (2008-7512)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63211
OpenVAS Name: Fedora Core 10 FEDORA-2009-0483 (xine-lib)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/22/2008 🔍
08/22/2008 +0 days 🔍
09/05/2008 +14 days 🔍
09/10/2008 +5 days 🔍
11/25/2008 +76 days 🔍
11/25/2008 +0 days 🔍
11/25/2008 +0 days 🔍
11/25/2008 +0 days 🔍
01/18/2009 +54 days 🔍
03/17/2015 +2249 days 🔍
08/24/2019 +1621 days 🔍

Sourcesinfo

Advisory: redhat.com
Researcher: Will Drewry
Organization: CERT
Status: Not defined

CVE: CVE-2008-5243 (🔍)
GCVE (CVE): GCVE-0-2008-5243
GCVE (VulDB): GCVE-100-45208

OVAL: 🔍

X-Force: 44658
SecurityFocus: 30797 - xine-lib 1.1.15 and Prior Multiple Remote Vulnerabilities
Secunia: 31827
OSVDB: 47743 - xine-lib height value denial of service
Vulnerability Center: 20531 - Xine-lib 1.1.15 and Earlier real_parse_headers Function Allows Remote Code Execution, Medium

See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 08/24/2019 10:34
Changes: 03/17/2015 16:11 (73), 08/24/2019 10:34 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!