NULL Pointer Dereference Affecting graphviz package, versions *
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-RHEL8-GRAPHVIZ-1330364
- published26 Jul 2021
- disclosed9 Apr 2019
Introduced: 9 Apr 2019
CVE-2019-11023 (opens in a new tab)How to fix?
There is no fixed version for RHEL:8 graphviz.
NVD Description
Note: Versions mentioned in the description apply only to the upstream graphviz package and not the graphviz package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.
References
- https://access.redhat.com/security/cve/CVE-2019-11023
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLEAHLDJVMAEGA3YMC7KPKJ7ZPXNMJID/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FI3D5TQE3IMCSF5OUTXQL4GVKFCIY5JG/
- https://gitlab.com/graphviz/graphviz/issues/1517
- https://research.loginsoft.com/bugs/null-pointer-dereference-in-function-agroot/
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00054.html
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00065.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00056.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00065.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CLEAHLDJVMAEGA3YMC7KPKJ7ZPXNMJID/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FI3D5TQE3IMCSF5OUTXQL4GVKFCIY5JG/