Uncontrolled Recursion in Sass LibSass



Published: 2019-11-06 | Updated: 2020-07-17
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-18797
CWE-ID CWE-674
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		LibSass
Universal components / Libraries / Libraries used by multiple products

Vendor Sass

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Uncontrolled Recursion

EUVDB-ID: #VU30654

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-18797

CWE-ID: CWE-674 - Uncontrolled Recursion

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

LibSass 3.6.1 has uncontrolled recursion in Sass::Eval::operator()(Sass::Binary_Expression*) in eval.cpp.

Mitigation

Install update from vendor's website.

Vulnerable software versions

LibSass: 3.6.0

External links

http://github.com/sass/libsass/issues/3000


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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