OptiPNG 0.7.6 GIF File gifread.c LZWReadByte memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in OptiPNG 0.7.6. This affects the function LZWReadByte of the file gifread.c of the component GIF File Handler. Such manipulation leads to memory corruption. This vulnerability is traded as CVE-2017-16938. An attack has to be approached locally. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in OptiPNG 0.7.6. Affected by this issue is the function LZWReadByte of the file gifread.c of the component GIF File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A global buffer overflow in OptiPNG 0.7.6 allows remote attackers to cause a denial-of-service attack or other unspecified impact with a maliciously crafted GIF format file, related to an uncontrolled loop in the LZWReadByte function of the gifread.c file.

The bug was discovered 11/24/2017. The weakness was shared 11/24/2017 (Website). The advisory is shared for download at sourceforge.net. This vulnerability is handled as CVE-2017-16938 since 11/24/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 104938 (Debian DLA-1196-1 : optipng 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 170581 (OpenSUSE Security Update for optipng (openSUSE-SU-2017:3162-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 6 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104938). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104938
Nessus Name: Debian DLA-1196-1 : optipng security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800281
OpenVAS Name: Debian Security Advisory DSA 4058-1 (optipng - 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: 🔍

Timelineinfo

11/24/2017 🔍
11/24/2017 +0 days 🔍
11/24/2017 +0 days 🔍
11/24/2017 +0 days 🔍
11/24/2017 +0 days 🔍
11/30/2017 +6 days 🔍
12/01/2017 +1 days 🔍
01/16/2023 +1872 days 🔍

Sourcesinfo

Advisory: DLA 1196-1
Status: Not defined

CVE: CVE-2017-16938 (🔍)
GCVE (CVE): GCVE-0-2017-16938
GCVE (VulDB): GCVE-100-109964

OVAL: 🔍

Entryinfo

Created: 11/24/2017 20:24
Updated: 01/16/2023 10:50
Changes: 11/24/2017 20:24 (72), 12/10/2019 15:56 (3), 01/16/2023 10:50 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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