SB2018033010 - Denial of service in FFmpeg
Published: March 30, 2018 Updated: April 26, 2018
Security Bulletin ID
SB2018033010
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2018-9841)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists in the export function in the libavfilter/vf_signature.c source code file when processing files with long filenames. A remote attacker can trick the victim into opening a specially crafted file with a long filename, trigger out-of-array access and cause the service to crash.
2) Infinite loop (CVE-ID: CVE-2018-7751)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists in the svg_probe function in the libavformat/img2dec.c source code file due to improper handling of XML files. A remote attacker can trick the victim into opening a specially crafted XML file, trigger infinite loop and cause the service to crash.
Remediation
Install update from vendor's website.