CVE-2018-11696
An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the...
CVE-2018-11696 is a high vulnerability (CVSS 8.8) in Sass-lang Libsass, published June 4, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.61%, the 76th percentile. Fixed in libsass 3.5.5-1.
An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the function Sass::Inspect::operator which could be leveraged by an attacker to cause a denial of service (application crash) or possibly have unspecified other impact.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
8.8
An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the function Sass::Inspect::operator which could be leveraged by an attacker to cause a denial of service (application crash) or possibly have unspecified other impact.
- Record
CVE-2018-11696- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the function Sass::Inspect::operator which could be leveraged by an attacker to cause a denial of service (application crash) or possibly have unspecified other impact.
- Record
CVE-2018-11696- Updated
- 2026-11-02
EUVDEUVD-2018-3715 No score
An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the function Sass::Inspect::operator which could be leveraged by an attacker to cause a denial of service (application crash) or possibly have unspecified other impact.
- Record
EUVD-2018-3715- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-56vf-rqwg-h55c
8.8
An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the...
An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the function Sass::Inspect::operator which could be leveraged by an attacker to cause a denial of service (application crash) or possibly have unspecified other impact.
- Record
GHSA-56vf-rqwg-h55c- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSV
8.8
An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the function Sass::Inspect::operator which could be leveraged by an attacker to cause a denial of service (application crash) or possibly have unspecified other impact.
- Record
CVE-2018-11696- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-11696
8.8
An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the function Sass::Inspect::operator which could be leveraged by an attacker to cause a denial of service (application crash) or possibly have unspecified other impact.
- Record
DEBIAN-CVE-2018-11696- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-11696
8.8
An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the function Sass::Inspect::operator which could be leveraged by an attacker to cause a denial of service (application crash) or possibly have unspecified other impact.
- Record
UBUNTU-CVE-2018-11696- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUSN-4837-1 No score
libsass vulnerabilities
It was discovered that LibSass incorrectly handled certain specially crafted sass file. An attacker could possibly use this issue to cause a denial of service or other unspecified impact.
- Record
USN-4837-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libsassDebian:12 |
before 3.5.5-1 | 3.5.5-1 |
libsassDebian:13 |
before 3.5.5-1 | 3.5.5-1 |
libsassDebian:14 |
before 3.5.5-1 | 3.5.5-1 |
libsassUbuntu:16.04:LTS |
All versions, plus listed versions 3.2.5-13.2.5-23.3.2-13.3.4-1 |
None known |
libsassUbuntu:Pro:18.04:LTS |
before 3.4.8-1ubuntu0.1~esm1, plus listed versions 3.4.3-13.4.6-13.4.8-1 |
3.4.8-1ubuntu0.1~esm1 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
github.com/sass/libsass/issues/2665
nvd.nist.gov/vuln/detail/CVE-2018-11696
github.com/advisories/GHSA-56vf-rqwg-h55c
security-tracker.debian.org/tracker/CVE-2018-11696
ubuntu.com/security/CVE-2018-11696
ubuntu.com/security/notices/USN-4837-1
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