Pidgin 2.10.7 HTTP Response memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Pidgin 2.10.7. It has been classified as critical. This issue affects some unknown processing of the component HTTP Response Handler. This manipulation causes memory corruption. This vulnerability is registered as CVE-2013-6485. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as very critical was found in Pidgin 2.10.7 (Messaging Software). Affected by this vulnerability is an unknown code block of the component HTTP Response Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in util.c in libpurple in Pidgin before 2.10.8 allows remote HTTP servers to cause a denial of service (application crash) or possibly have unspecified other impact via an invalid chunk-size field in chunked transfer-coding data.

The weakness was published 01/28/2014 by Matt Jones with Volvent Security as Buffer overflow parsing chunked HTTP responses as not defined advisory (Website). It is possible to read the advisory at pidgin.im. This vulnerability is known as CVE-2013-6485 since 11/04/2013. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/08/2021).

The vulnerability scanner Nessus provides a plugin with the ID 72352 (CentOS 5 / 6 : pidgin (CESA-2014:0139)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 122899 (Debian Security Update for pidgin (DSA 2859-2)).

Upgrading to version 2.10.8 eliminates this vulnerability. The upgrade is hosted for download at hg.pidgin.im. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (90820), Tenable (72352), SecurityFocus (BID 65243†), OSVDB (102623†) and Secunia (SA56693†). Additional details are provided at linux-magazin.de. Similar entries are available at VDB-12106, VDB-12107, VDB-12108 and VDB-12109. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 72352
Nessus Name: CentOS 5 / 6 : pidgin (CESA-2014:0139)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 702859
OpenVAS Name: Debian Security Advisory DSA 2859-1 (pidgin - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Pidgin 2.10.8

Timelineinfo

11/04/2013 🔍
01/28/2014 +85 days 🔍
01/28/2014 +0 days 🔍
01/28/2014 +0 days 🔍
01/28/2014 +0 days 🔍
01/30/2014 +2 days 🔍
01/31/2014 +1 days 🔍
02/05/2014 +5 days 🔍
02/06/2014 +1 days 🔍
06/08/2021 +2679 days 🔍

Sourcesinfo

Advisory: Buffer overflow parsing chunked HTTP responses
Researcher: Matt Jones
Organization: Volvent Security
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-6485 (🔍)
GCVE (CVE): GCVE-0-2013-6485
GCVE (VulDB): GCVE-100-12115

OVAL: 🔍

X-Force: 90820
SecurityFocus: 65243 - Pidgin 'process_chunked_data()' Function Heap Buffer Overflow Vulnerability
Secunia: 56693 - Pidgin Multiple Vulnerabilities, Highly Critical
OSVDB: 102623
Vulnerability Center: 43166 - Pidgin Prior to 2.10.8 Remote Code Execution Vulnerability via a Malformed HTTP Response - CVE-2013-6485, High

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 01/31/2014 10:17
Updated: 06/08/2021 20:16
Changes: 01/31/2014 10:17 (81), 05/20/2017 10:27 (5), 06/08/2021 20:16 (2)
Complete: 🔍
Cache ID: 216:FF2:103

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