VDB-227118 · CVE-2015-7505 · GCVE-0-2015-7505

Libnsgif 0.1.2 LZW Stream libnsgif.c gif_next_LZW out-of-bounds write

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.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Libnsgif 0.1.2. Affected by this issue is the function gif_next_LZW of the file libnsgif.c of the component LZW Stream Handler. The manipulation results in out-of-bounds write. This vulnerability was named CVE-2015-7505. The attack may be performed from remote. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Libnsgif 0.1.2. Affected is the function gif_next_LZW of the file libnsgif.c of the component LZW Stream Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow in the gif_next_LZW function in libnsgif.c in Libnsgif 0.1.2 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted LZW stream in a GIF file.

The weakness was presented 04/22/2023. The advisory is available at seclists.org. This vulnerability is traded as CVE-2015-7505 since 09/29/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known.

The exploit is shared for download at seclists.org. It is declared as proof-of-concept.

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

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Productinfo

Name

Libnsgif

Version

0.1.2

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/29/2015 🔍
04/22/2023 +2762 days 🔍
04/22/2023 +0 days 🔍
04/22/2023 +0 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Not defined

CVE: CVE-2015-7505 (🔍)
GCVE (CVE): GCVE-0-2015-7505
GCVE (VulDB): GCVE-100-227118
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/22/2023 08:32
Changes: 04/22/2023 08:32 (58)
Complete: 🔍
Cache ID: 216::103