SB2018090504 - Denial of service in GNOME GLib
Published: September 5, 2018 Updated: December 10, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2018-16429)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to out-of-bounds read vulnerability in g_markup_parse_context_parse() in gmarkup.c, related to utf8_str(). A local attacker can execute a specially crafted application or file that submits malicious input and cause the service to crash.
2) NULL pointer dereference (CVE-ID: CVE-2018-16428)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to NULL pointer dereference in g_markup_parse_context_end_parse() in gmarkup.c. A local attacker can execute a specially crafted application or file that submits malicious input and cause the service to crash.
Remediation
Install update from vendor's website.