SB2018061332 - NULL pointer dereference in freetype (Alpine package)
Published: June 13, 2018
Security Bulletin ID
SB2018061332
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2018-6942)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the Ins_GETVARIATION() function within ttinterp.c due to NULL pointer dereference. A remote attacker can trick the victim into opening a specially crafted font file and cause the service to crash.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=161f787af144080e2c15d648750e8aae04447b19
- https://git.alpinelinux.org/aports/commit/?id=5ec6e75b44adbf424ee1f49315682d9441e32889
- https://git.alpinelinux.org/aports/commit/?id=7a7493c33286ca7e43c8171cd6fad02bd13574c8
- https://git.alpinelinux.org/aports/commit/?id=89c7aef675e52f6296314b9c79c495732c7b5809