LibSass 3.5.5 prelexer.hpp parenthese_scope memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in LibSass 3.5.5. This affects the function Sass::Prelexer::parenthese_scope of the file prelexer.hpp. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2019-6283. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in LibSass 3.5.5 (Programming Language Software). This affects the function Sass::Prelexer::parenthese_scope of the file prelexer.hpp. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::parenthese_scope in prelexer.hpp.

The bug was discovered 01/13/2019. The weakness was shared 01/14/2019 (Website). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2019-6283 since 01/14/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

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

The entries VDB-129162 and VDB-129160 are related to this item. Be aware that VulDB is the high quality 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: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
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: Memory corruption
CWE: CWE-119
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/13/2019 🔍
01/14/2019 +1 days 🔍
01/14/2019 +0 days 🔍
01/14/2019 +0 days 🔍
01/15/2019 +1 days 🔍
06/27/2023 +1624 days 🔍

Sourcesinfo

Advisory: 2814
Status: Not defined

CVE: CVE-2019-6283 (🔍)
GCVE (CVE): GCVE-0-2019-6283
GCVE (VulDB): GCVE-100-129159
See also: 🔍

Entryinfo

Created: 01/15/2019 10:26
Updated: 06/27/2023 08:39
Changes: 01/15/2019 10:26 (58), 04/29/2020 14:30 (1), 06/27/2023 08:39 (3)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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