libsixel 1.8.2 frompnm.c load_pnm out-of-bounds write

HistoryDiffrelatejsonxmlCTI

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.
8.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in libsixel 1.8.2. It has been declared as critical. Affected by this issue is the function load_pnm of the file frompnm.c. The manipulation results in out-of-bounds write. This vulnerability is identified as CVE-2019-19638. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in libsixel 1.8.2. It has been classified as critical. Affected is the function load_pnm of the file frompnm.c. 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:

An issue was discovered in libsixel 1.8.2. There is a heap-based buffer overflow in the function load_pnm at frompnm.c, due to an integer overflow.

The weakness was released 12/08/2019. This vulnerability is traded as CVE-2019-19638 since 12/08/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

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

Entries connected to this vulnerability are available at VDB-146795, VDB-146794 and VDB-146793. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

libsixel

Version

1.8.2

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

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

NVD Base Score: 9.8
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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/08/2019 🔍
12/08/2019 +0 days 🔍
12/08/2019 +0 days 🔍
03/09/2024 +1553 days 🔍

Sourcesinfo

Advisory: 102
Status: Not defined

CVE: CVE-2019-19638 (🔍)
GCVE (CVE): GCVE-0-2019-19638
GCVE (VulDB): GCVE-100-146796
See also: 🔍

Entryinfo

Created: 12/08/2019 13:23
Updated: 03/09/2024 08:33
Changes: 12/08/2019 13:23 (36), 12/08/2019 13:28 (17), 03/09/2024 08:33 (4)
Complete: 🔍
Cache ID: 216::103