Tatsuya Kinoshita w3m up to 0.5.3-30 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

A vulnerability has been found in Tatsuya Kinoshita w3m up to 0.5.3-30 (Web Browser) and classified as critical. This vulnerability affects an unknown function. 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. CVE summarizes:

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) and possibly memory corruption via a crafted HTML page.

The bug was discovered 11/18/2016. The weakness was presented 12/12/2016 (Website). The advisory is shared for download at openwall.com. This vulnerability was named CVE-2016-9437 since 11/18/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 95650 (SUSE SLED12 / SLES12 Security Update : w3m (SUSE-SU-2016:3053-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169423 (SUSE Enterprise Linux Security Update for w3m (SUSE-SU-2016:3053-1)).

Upgrading to version 0.5.3-31 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (95650). See 94095, 94096, 94097 and 94098 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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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: 🔍

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Nessus ID: 95650
Nessus Name: SUSE SLED12 / SLES12 Security Update : w3m (SUSE-SU-2016:3053-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for w3m FEDORA-2017-783e8fa63e
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: w3m 0.5.3-31

Timelineinfo

11/03/2016 🔍
11/18/2016 +15 days 🔍
11/18/2016 +0 days 🔍
12/08/2016 +20 days 🔍
12/08/2016 +0 days 🔍
12/11/2016 +3 days 🔍
12/12/2016 +1 days 🔍
12/12/2016 +0 days 🔍
10/05/2022 +2123 days 🔍

Sourcesinfo

Advisory: 17
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-9437 (🔍)
SecurityFocus: 94407 - w3m Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 12/12/2016 09:37
Updated: 10/05/2022 18:23
Changes: 12/12/2016 09:37 (73), 06/25/2019 16:19 (6), 10/05/2022 18:23 (3)
Complete: 🔍

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