PT-2017-2889 · Sass · Libsass

Published 2017-08-17 · Updated 2019-10-03 · CVE-2017-12964

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions LibSass version 3.4.5

Description The issue is related to a stack consumption problem in the Sass::Eval::operator() function, located in eval.cpp, which can lead to a denial of service attack. This can be exploited by a remote attacker, resulting in a service disruption.

Recommendations For LibSass version 3.4.5, consider disabling the Sass::Eval::operator() function as a temporary workaround until a patch is available. Restrict access to the vulnerable eval.cpp module to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Uncontrolled Recursion

Weakness Enumeration

CWE-399

CWE-674

Related Identifiers

BDU:2017-02175

CVE-2017-12964

Affected Products

Libsass

References · 7

• https://cve.org/CVERecord?id=CVE-2017-12964 · Security Note
• https://ubuntu.com/security/CVE-2017-12964 · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-02175 · Security Note
• https://osv.dev/vulnerability/CVE-2017-12964 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-12964 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-12964 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1482397 · Note