SB2017022820 - Fedora 25 update for kernel
Published: February 28, 2017 Updated: April 24, 2025
Security Bulletin ID
SB2017022820
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2017-6347)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to a boundary error within the ip_cmsg_recv_checksum() function in net/ipv4/ip_sockglue.c when using the MSG_MORE flag in conjunction with loopback UDP transmission. A local user can trigger an out-of-bounds read error and gain access to sensitive information.
Remediation
Install update from vendor's website.