libsixel up to 1.8.3 fromsixel.c image_buffer_resize 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.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in libsixel up to 1.8.3. Affected by this vulnerability is the function image_buffer_resize of the file fromsixel.c. Executing a manipulation can lead to out-of-bounds write. This vulnerability is handled as CVE-2019-20024. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in libsixel up to 1.8.3. It has been declared as critical. This vulnerability affects the function image_buffer_resize of the file fromsixel.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A heap-based buffer overflow was discovered in image_buffer_resize in fromsixel.c in libsixel before 1.8.4.

The weakness was released 12/27/2019. This vulnerability was named CVE-2019-20024 since 12/27/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 1.8.4 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-147795 and VDB-147794. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

libsixel

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libsixel 1.8.4

Timelineinfo

12/27/2019 🔍
12/27/2019 +0 days 🔍
12/27/2019 +0 days 🔍
03/17/2024 +1542 days 🔍

Sourcesinfo

Advisory: 121
Status: Not defined

CVE: CVE-2019-20024 (🔍)
GCVE (CVE): GCVE-0-2019-20024
GCVE (VulDB): GCVE-100-147796
See also: 🔍

Entryinfo

Created: 12/27/2019 09:05
Updated: 03/17/2024 14:18
Changes: 12/27/2019 09:05 (38), 12/27/2019 09:10 (17), 03/17/2024 14:18 (5)
Complete: 🔍
Cache ID: 216::103