Vulnerability Details : CVE-2018-20821
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).
Vulnerability category: Denial of service
Products affected by CVE-2018-20821
- cpe:2.3:a:sass-lang:libsass:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-20821
0.27%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 67 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-20821
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2018-20821
-
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-20821
-
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html
[security-announce] openSUSE-SU-2019:1791-1: moderate: Security update fBroken Link
-
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html
[security-announce] openSUSE-SU-2019:1800-1: moderate: Security update fBroken Link
-
https://github.com/sass/libsass/issues/2658
AddressSanitizer: stack-overflow when creating String_Schema_Obj (parser.cpp:1808) · Issue #2658 · sass/libsass · GitHubExploit;Patch;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html
[security-announce] openSUSE-SU-2019:1883-1: moderate: Security update fBroken Link
Jump to