VDB-62991 · CVE-2012-5854 · BID 56482

Flashtux WeeChat 0.3.6/0.3.7/0.3.8/0.3.9 memory corruption

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.
7.3$0-$5k0.00

A vulnerability classified as critical has been found in Flashtux WeeChat 0.3.6/0.3.7/0.3.8/0.3.9 (Chat Software). This affects an unknown code block. 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 WeeChat 0.3.6 through 0.3.9 allows remote attackers to cause a denial of service (crash or hang) and possibly execute arbitrary code via crafted IRC colors that are not properly decoded.

The weakness was released 11/19/2012 (Website). It is possible to read the advisory at savannah.nongnu.org. This vulnerability is uniquely identified as CVE-2012-5854 since 11/12/2012. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 62887 (FreeBSD : weechat -- Crash or freeze when decoding IRC colors in strings (e02c572f-2af0-11e2-bb44-003067b2972c)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165834 (SUSE Security Update for weechat (openSUSE-SU-2013:0150-1)).

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 vulnerability database at Tenable (62887). Entry connected to this vulnerability is available at 63116.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 62887
Nessus Name: FreeBSD : weechat -- Crash or freeze when decoding IRC colors in strings (e02c572f-2af0-11e2-bb44-003067b2972c)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 72604
OpenVAS Name: FreeBSD Ports: weechat
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

11/12/2012 🔍
11/12/2012 +0 days 🔍
11/12/2012 +0 days 🔍
11/12/2012 +0 days 🔍
11/19/2012 +7 days 🔍
11/19/2012 +0 days 🔍
11/20/2012 +1 days 🔍
03/24/2015 +854 days 🔍
12/20/2021 +2463 days 🔍

Sourcesinfo

Advisory: savannah.nongnu.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-5854 (🔍)
Vulnerability Center: 37347 - WeeChat 0.3.6-0.3.9 Remote DoS or Arbitrary Code Execution Vulnerability via Crafted IRC Colors, High
SecurityFocus: 56482 - WeeChat Color Decoding Heap Buffer Overflow Vulnerability
Secunia: 51377
OSVDB: 87279

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/20/2021 08:44
Changes: 03/24/2015 12:22 (67), 04/21/2017 13:25 (5), 12/20/2021 08:44 (3)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!