Vulnerability Details : CVE-2017-11556
There is a stack consumption vulnerability in the Parser::advanceToNextToken function in parser.cpp in LibSass 3.4.5. A crafted input may lead to remote denial of service.
Vulnerability category: Denial of service
Products affected by CVE-2017-11556
- cpe:2.3:a:libsass:libsass:3.4.5:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-11556
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-11556
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-11556
-
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-2017-11556
-
https://bugzilla.redhat.com/show_bug.cgi?id=1471786
1471786 – There is a stack-overflow in the sassc of libsass library. This vulnerability is triggered in function Parser::advanceToNextToken() .Exploit;Issue Tracking;Third Party Advisory
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