Use After Free Affecting libsass package, versions <3.4.8-1ubuntu0.1~esm1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-LIBSASS-471915
- published26 May 2018
- disclosed26 May 2018
Introduced: 26 May 2018
CVE-2018-11499 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 libsass to version 3.4.8-1ubuntu0.1~esm1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libsass package and not the libsass package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
A use-after-free vulnerability exists in handle_error() in sass_context.cpp in LibSass 3.4.x and 3.5.x through 3.5.4 that could be leveraged to cause a denial of service (application crash) or possibly unspecified other impact.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-11499
- https://security-tracker.debian.org/tracker/CVE-2018-11499
- https://github.com/sass/libsass/issues/2643
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html