CVE-2018-20821 — Uncontrolled Recursion in Libsass

CWE-674 — Uncontrolled Recursion8 documents6 sources
Severity
6.5MEDIUMNVD
EPSS
0.7%
top 27.44%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LibsassDebian LibsassSass-lang Libsass
Timeline
PublishedApr 23
Latest updateMay 24

Description

The parsing component in LibSass through 3.5.5 allows attackers to cause a denial-of-service (uncontrolled recursion in Sass::Parser::parse_css_variable_value in parser.cpp).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/libsass< libsass 3.6.3-1 (bookworm)
▶Debianlibsass/libsass< 3.6.3-1+3

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-j7pw-5g39-c2cj: The parsing component in LibSass through 3↗2022-05-24
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OSV
CVE-2018-20821: The parsing component in LibSass through 3↗2019-04-23
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📋Vendor Advisories

2
Red Hat
libsass: parsing component allows attackers to cause denial-of-service↗2018-06-02
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Debian
CVE-2018-20821: libsass - The parsing component in LibSass through 3.5.5 allows attackers to cause a denia...↗2018
▶

💬Community

3
Bugzilla
CVE-2018-20821 CVE-2018-20822 libsass: various flaws [epel-7]↗2019-05-03
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Bugzilla
CVE-2018-20821 libsass: parsing component allows attackers to cause denial-of-service↗2019-05-03
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Bugzilla
CVE-2018-20821 CVE-2018-20822 libsass: various flaws [fedora-all]↗2019-05-03
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