SB20240620119 - Allocation of resources without limits or throttling in Linux kernel net xen-netback driver
Published: June 20, 2024
Security Bulletin ID
SB20240620119
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) Allocation of resources without limits or throttling (CVE-ID: CVE-2021-28038)
The vulnerability allows a local user to a crash the entire system.
The vulnerability exists due to allocation of resources without limits or throttling error within the xenvif_tx_action() function in drivers/net/xen-netback/netback.c. A local user can a crash the entire system.
Remediation
Install update from vendor's website.
References
- http://xenbits.xen.org/xsa/advisory-367.html
- http://www.openwall.com/lists/oss-security/2021/03/05/1
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
- https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html
- https://security.netapp.com/advisory/ntap-20210409-0001/
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2991397d23ec597405b116d96de3813420bdcbc3