SB2025022736 - Memory leak in Linux kernel ipv6
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022736
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 security vulnerability.
1) Memory leak (CVE-ID: CVE-2025-21757)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the seg6_input_core() and seg6_output_core() functions in net/ipv6/seg6_iptunnel.c, within the rpl_output() and rpl_input() functions in net/ipv6/rpl_iptunnel.c, within the ioam6_do_encap(), ip6_route_output() and dst_output() functions in net/ipv6/ioam6_iptunnel.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.