LibSass 3.4.5 eval.cpp Sass::Eval::operator out-of-bounds

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 was found in LibSass 3.4.5 and classified as problematic. Affected by this vulnerability is the function Sass::Eval::operator of the file eval.cpp. Such manipulation leads to out-of-bounds. This vulnerability is listed as CVE-2017-12963. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in LibSass 3.4.5 (Programming Language Software). It has been rated as problematic. Affected by this issue is the function Sass::Eval::operator of the file eval.cpp. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability. CVE summarizes:

There is an illegal address access in Sass::Eval::operator() in eval.cpp of LibSass 3.4.5, leading to a remote denial of service attack. NOTE: this is similar to CVE-2017-11555 but remains exploitable after the vendor's CVE-2017-11555 fix (available from GitHub after 2017-07-24).

The bug was discovered 08/16/2017. The weakness was presented 08/18/2017 (Website). The advisory is available at bugzilla.redhat.com. This vulnerability is handled as CVE-2017-12963 since 08/18/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 2 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.

See VDB-105579 and VDB-105577 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: Out-of-bounds
CWE: CWE-125 / 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

08/16/2017 🔍
08/18/2017 +2 days 🔍
08/18/2017 +0 days 🔍
08/18/2017 +0 days 🔍
08/19/2017 +1 days 🔍
11/09/2019 +812 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2017-12963 (🔍)
GCVE (CVE): GCVE-0-2017-12963
GCVE (VulDB): GCVE-100-105578
See also: 🔍

Entryinfo

Created: 08/19/2017 08:58
Updated: 11/09/2019 06:57
Changes: 08/19/2017 08:58 (52), 11/09/2019 06:57 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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