WeeChat up to 1.7.0 IRC Plugin irc_ctcp_dcc_filename_without_quotes Filename memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in WeeChat up to 1.7.0. Impacted is the function irc_ctcp_dcc_filename_without_quotes of the component IRC Plugin. Performing a manipulation as part of Filename results in memory corruption. This vulnerability is cataloged as CVE-2017-8073. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in WeeChat up to 1.7.0 (Chat Software). This affects the function irc_ctcp_dcc_filename_without_quotes of the component IRC Plugin. The manipulation as part of a Filename 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:

WeeChat before 1.7.1 allows a remote crash by sending a filename via DCC to the IRC plugin. This occurs in the irc_ctcp_dcc_filename_without_quotes function during quote removal, with a buffer overflow.

The bug was discovered 04/22/2017. The weakness was shared 04/23/2017 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2017-8073 since 04/23/2017. 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 vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 99693 (Debian DLA-919-1 : weechat security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276648 (Fedora Security Update for weechat (FEDORA-2017-20dd9f26cf)).

Upgrading to version 1.7.1 eliminates this vulnerability. A possible mitigation has been published 3 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99693) and SecurityFocus (BID 97987†). The entry VDB-110264 is related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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: 99693
Nessus Name: Debian DLA-919-1 : weechat security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703836
OpenVAS Name: Debian Security Advisory DSA 3836-1 (weechat - security update)
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: WeeChat 1.7.1
Patch: github.com

Timelineinfo

04/22/2017 🔍
04/23/2017 +1 days 🔍
04/23/2017 +0 days 🔍
04/23/2017 +0 days 🔍
04/23/2017 +0 days 🔍
04/23/2017 +0 days 🔍
04/26/2017 +3 days 🔍
04/27/2017 +1 days 🔍
12/02/2022 +2045 days 🔍

Sourcesinfo

Product: github.com

Advisory: 2fb346f25f79e412cf0ed314fdf791763c19b70b
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8073 (🔍)
GCVE (CVE): GCVE-0-2017-8073
GCVE (VulDB): GCVE-100-100479

OVAL: 🔍

SecurityFocus: 97987 - WeeChat CVE-2017-8073 Buffer Overflow Vulnerability
OSVDB: - CVE-2017-8073 - WeeChat - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 04/24/2017 00:37
Updated: 12/02/2022 08:32
Changes: 04/24/2017 00:37 (85), 12/02/2022 08:28 (5), 12/02/2022 08:32 (1)
Complete: 🔍
Cache ID: 216::103

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