CVE-2017-11554 — HIGH (7.5)

Vulnerability Description

There is a stack consumption vulnerability in the lex function in parser.hpp (as used in sassc) in LibSass 3.4.5. A crafted input will lead to a remote denial of service.

CVSS Score

7.5

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Libsass	Libsass	3.4.5

Related Weaknesses (CWE)

CWE-674

References

https://bugzilla.redhat.com/show_bug.cgi?id=1471780ExploitIssue TrackingThird Party Advisory
https://github.com/sass/libsass/issues/2445Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1471780ExploitIssue TrackingThird Party Advisory
https://github.com/sass/libsass/issues/2445Third Party Advisory

FAQ

What is CVE-2017-11554?

CVE-2017-11554 is a vulnerability with a CVSS score of 7.5 (HIGH). There is a stack consumption vulnerability in the lex function in parser.hpp (as used in sassc) in LibSass 3.4.5. A crafted input will lead to a remote denial of service.

How severe is CVE-2017-11554?

CVE-2017-11554 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-11554?

Check the references section above for vendor advisories and patch information. Affected products include: Libsass Libsass.