CVE catalog
CVE-2017-11556
libsass: CVE-2017-11556
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.20% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libsass | sid | 3.6.5+20231221-3 | fixed |
| Debian | libsass | forky | 3.6.5+20231221-3 | fixed |
| Debian | libsass | trixie | 3.6.5+20231221-3 | fixed |
| Debian | libsass | bookworm | 3.6.5+20220909-1 | fixed |
| Ubuntu | libsass | 16.04 | 3.2.5-1 | vulnerable |
| Ubuntu | libsass | 16.04 | 3.2.5-2 | vulnerable |
| Ubuntu | libsass | 16.04 | 3.3.2-1 | vulnerable |
| Ubuntu | libsass | 16.04 | 3.3.4-1 | vulnerable |
| Ubuntu | libsass | pro | 3.4.3-1 | vulnerable |
| Ubuntu | libsass | pro | 3.4.6-1 | vulnerable |
| Ubuntu | libsass | pro | 3.4.8-1 | vulnerable |
| Ubuntu | libsass | pro | 3.4.8-1ubuntu0.1~esm1 | vulnerable |
| Ubuntu | libsass | 20.04 | 3.5.5-4 | vulnerable |
| Ubuntu | libsass | 20.04 | 3.6.3-1ubuntu1 | vulnerable |
| Ubuntu | libsass | 22.04 | 3.6.5-1ubuntu1 | vulnerable |
| Ubuntu | libsass | 24.04 | 3.6.5+20220909-1ubuntu1 | vulnerable |
| Ubuntu | libsass | 24.04 | 3.6.5+20231221-3 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libsass | source | sid | 3.5.4-1 | not yet assigned | Not reported | [870182] |
| Debian | libsass | source | forky | 3.5.4-1 | not yet assigned | Not reported | [870182] |
| Debian | libsass | source | trixie | 3.5.4-1 | not yet assigned | Not reported | [870182] |
| Debian | libsass | source | bookworm | 3.5.4-1 | not yet assigned | Not reported | [870182] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libsass1]Fixed
Source package: [libsass]
Details (2)
3.6.5+20220909-1· amd64 · bookwormFixed · Fixed:
3.5.4-1dsa · libsass · debian · bookworm; dsa · libsass · debian · 12
3.6.5+20220909-1· arm64 · bookwormFixed · Fixed:
3.5.4-1dsa · libsass · debian · bookworm; dsa · libsass · debian · 12
- [libsass-dev]Fixed
Source package: [libsass]
Details (2)
3.6.5+20220909-1· amd64 · bookwormFixed · Fixed:
3.5.4-1dsa · libsass · debian · bookworm; dsa · libsass · debian · 12
3.6.5+20220909-1· arm64 · bookwormFixed · Fixed:
3.5.4-1dsa · libsass · debian · bookworm; dsa · libsass · debian · 12
[Debian 13 (Trixie)]
- [libsass1]Fixed
Source package: [libsass]
Details (2)
3.6.5+20231221-3+b1· amd64 · trixieFixed · Fixed:
3.5.4-1dsa · libsass · debian · 13
3.6.5+20231221-3+b1· arm64 · trixieFixed · Fixed:
3.5.4-1dsa · libsass · debian · 13
- [libsass-dev]Fixed
Source package: [libsass]
Details (2)
3.6.5+20231221-3+b1· amd64 · trixieFixed · Fixed:
3.5.4-1dsa · libsass · debian · 13
3.6.5+20231221-3+b1· arm64 · trixieFixed · Fixed:
3.5.4-1dsa · libsass · debian · 13
Observed: