Vulnerability Details : CVE-2018-19839
In LibSass prior to 3.5.5, the function handle_error in sass_context.cpp allows attackers to cause a denial-of-service resulting from a heap-based buffer over-read via a crafted sass file.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2018-19839
Probability of exploitation activity in the next 30 days: 0.35%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 69 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2018-19839
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST |
6.5
|
MEDIUM | CVSS:3.0/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-2018-19839
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-19839
-
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html
[security-announce] openSUSE-SU-2019:1791-1: moderate: Security update f
-
https://github.com/sass/libsass/pull/2767
Update utfcpp to v2.3.6 by glebm · Pull Request #2767 · sass/libsass · GitHubPatch;Third Party Advisory
-
https://github.com/sass/libsass/issues/2657
AddressSanitizer: buffer-overflow (OOB read) against some invalid input (sass_context.cpp:81) · Issue #2657 · sass/libsass · GitHubExploit;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html
[security-announce] openSUSE-SU-2019:1800-1: moderate: Security update f
-
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html
[security-announce] openSUSE-SU-2019:1883-1: moderate: Security update f
Products affected by CVE-2018-19839
- cpe:2.3:a:sass-lang:libsass:*:*:*:*:*:*:*:*