NULL pointer dereference in Graphite2 - CVE-2018-7999
Published: March 13, 2018 / Updated: March 20, 2018
Vulnerability identifier: #VU10945
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-7999
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the Segment.cpp code due to NULL pointer dereference. A local attacker can submit a crafted font type file, trigger memory corruption and cause the service to crash.
The weakness exists in the Segment.cpp code due to NULL pointer dereference. A local attacker can submit a crafted font type file, trigger memory corruption and cause the service to crash.
Affected software
Graphite2
Ubuntu
Fedora
libgraphite2-3 (Ubuntu package)
graphite2
Ubuntu
Fedora
libgraphite2-3 (Ubuntu package)
graphite2
How to mitigate CVE-2018-7999
Install update from vendor's website.
libgraphite2-3 (Ubuntu package) - update to Ubuntu Pro (Infra-only)
graphite2 - addressed in versions 1.3.13-1.fc29, 1.3.13-1.fc30
graphite2 - addressed in versions 1.3.13-1.fc29, 1.3.13-1.fc30