In libgraphite2 in graphite2 1.3.11, a NULL pointer dereference vulnerability was found in Segment.cpp during a dumbRendering operation, which may allow attackers to cause a denial of service or possibly have unspecified other impact via a crafted .ttf file.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Graphite2 | Sil | 1.3.11 (including) | 1.3.11 (including) |
| Graphite2 | Ubuntu | artful | * |
| Graphite2 | Ubuntu | esm-infra-legacy/trusty | * |
| Graphite2 | Ubuntu | esm-infra/xenial | * |
| Graphite2 | Ubuntu | trusty | * |
| Graphite2 | Ubuntu | trusty/esm | * |
| Graphite2 | Ubuntu | upstream | * |
| Graphite2 | Ubuntu | xenial | * |
Potential Mitigations
References
- https://github.com/silnrsi/graphite/commit/db132b4731a9b4c9534144ba3a18e65b390e9ff6
- https://github.com/silnrsi/graphite/issues/22
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L5F3CK2IPXFCLQZEBEEXONWIABN2E7H2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LVWOKYZZDEMG6VSG53KAGUOHUIIQ7CND/
- https://github.com/silnrsi/graphite/commit/db132b4731a9b4c9534144ba3a18e65b390e9ff6
- https://github.com/silnrsi/graphite/issues/22
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L5F3CK2IPXFCLQZEBEEXONWIABN2E7H2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LVWOKYZZDEMG6VSG53KAGUOHUIIQ7CND/