libproxy 0.2.3/0.3.0/0.3.1 lib/pac.c px_pac_reload memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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10.0$0-$5k0.00

Summaryinfo

A vulnerability was found in libproxy 0.2.3/0.3.0/0.3.1. It has been rated as critical. This affects the function px_pac_reload in the library lib/pac.c. Performing a manipulation results in memory corruption. This vulnerability is known as CVE-2012-4505. No exploit is available.

Detailsinfo

A vulnerability, which was classified as very critical, was found in libproxy 0.2.3/0.3.0/0.3.1 (Firewall Software). This affects the function px_pac_reload in the library lib/pac.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in the px_pac_reload function in lib/pac.c in libproxy 0.2.x and 0.3.x allows remote servers to have an unspecified impact via a crafted Content-Length size in an HTTP response header for a proxy.pac file request, a different vulnerability than CVE-2012-4504.

The weakness was published 11/11/2012 by Tomas Hoger (Website). It is possible to read the advisory at groups.google.com. This vulnerability is uniquely identified as CVE-2012-4505 since 08/21/2012. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/19/2021).

The vulnerability scanner Nessus provides a plugin with the ID 68657 (Oracle Linux 6 : libproxy (ELSA-2012-1461)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195364 (Ubuntu Security Notification for Libproxy Vulnerabilities (USN-1629-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (79250), Tenable (68657), SecurityFocus (BID 55910†), Secunia (SA51048†) and Vulnerability Center (SBV-37161†). Similar entry is available at VDB-62894. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 68657
Nessus Name: Oracle Linux 6 : libproxy (ELSA-2012-1461)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 72566
OpenVAS Name: Debian Security Advisory DSA 2571-1 (libproxy)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/21/2012 🔍
10/12/2012 +52 days 🔍
10/12/2012 +0 days 🔍
10/22/2012 +10 days 🔍
11/11/2012 +20 days 🔍
11/11/2012 +0 days 🔍
11/12/2012 +1 days 🔍
07/12/2013 +242 days 🔍
03/24/2015 +620 days 🔍
12/19/2021 +2462 days 🔍

Sourcesinfo

Advisory: RHSA-2012:1461
Researcher: Tomas Hoger
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-4505 (🔍)
GCVE (CVE): GCVE-0-2012-4505
GCVE (VulDB): GCVE-100-62895

OVAL: 🔍

X-Force: 79250
SecurityFocus: 55910 - libproxy CVE-2012-4505 Heap-Based Buffer Overflow Vulnerability
Secunia: 51048 - SUSE update for libproxy, Less Critical
Vulnerability Center: 37161 - Libproxy 0.3.1, 0.3.0 \x27px_pac_reload()\x27 Heap-Based Buffer Overflow Allows Remote Code Execution\\DoS, High

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/19/2021 19:05
Changes: 03/24/2015 12:22 (70), 04/20/2017 22:18 (8), 12/19/2021 18:51 (2), 12/19/2021 18:58 (1), 12/19/2021 19:05 (2)
Complete: 🔍
Cache ID: 216:EB5:103

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