SB2017111524 - Fedora 26 update for kernel
Published: November 15, 2017 Updated: April 24, 2025
Security Bulletin ID
SB2017111524
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free error (CVE-ID: CVE-2017-15115)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to the sctp_do_peeloff function in net/sctp/socket.c in the Linux kernel does not check whether the intended netns is used in a peel-off action. A local attacker can make specially crafted system calls, trigger use-after-free error and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Remediation
Install update from vendor's website.