LibSass up to 3.6.2 parser_selectors.cpp parseCompoundSelector null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in LibSass up to 3.6.2. This vulnerability affects the function Sass::Parser::parseCompoundSelector of the file parser_selectors.cpp. Such manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2019-18799. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in LibSass up to 3.6.2 (Programming Language Software) and classified as problematic. Affected by this issue is the function Sass::Parser::parseCompoundSelector of the file parser_selectors.cpp. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. CVE summarizes:

LibSass before 3.6.3 allows a NULL pointer dereference in Sass::Parser::parseCompoundSelector in parser_selectors.cpp.

The weakness was presented 11/06/2019. This vulnerability is handled as CVE-2019-18799 since 11/06/2019. 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.

Upgrading to version 3.6.3 eliminates this vulnerability.

See VDB-145147 and VDB-145146 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LibSass 3.6.3

Timelineinfo

11/06/2019 🔍
11/06/2019 +0 days 🔍
11/07/2019 +1 days 🔍
02/05/2024 +1551 days 🔍

Sourcesinfo

Advisory: 3001
Status: Not defined

CVE: CVE-2019-18799 (🔍)
GCVE (CVE): GCVE-0-2019-18799
GCVE (VulDB): GCVE-100-145148
See also: 🔍

Entryinfo

Created: 11/07/2019 10:11
Updated: 02/05/2024 10:03
Changes: 11/07/2019 10:11 (38), 11/07/2019 10:16 (18), 02/05/2024 10:03 (5)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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