SB2024053056 - Memory leak in Linux kernel ipv4
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053056
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-2021-47250)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the cipso_v4_doi_free() function in net/ipv4/cipso_ipv4.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4
- https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c
- https://git.kernel.org/stable/c/6dcea66d3bb519b426282588f38e884e07893c1f
- https://git.kernel.org/stable/c/5340858147e3dc60913fb3dd0cbb758ec4a26e66
- https://git.kernel.org/stable/c/398a24447eb60f060c8994221cb5ae6caf355fa1
- https://git.kernel.org/stable/c/deeeb65c6ee404f2d1fb80b38b2730645c0f4663
- https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4
- https://git.kernel.org/stable/c/d612c3f3fae221e7ea736d196581c2217304bbbc
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.238
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.196
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.274
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.274
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.46
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.128