CVE-2021-31440

Name
CVE-2021-31440
Description
This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.11.15. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The issue results from the lack of proper validation of user-supplied eBPF programs prior to executing them. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-13661.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://www.zerodayinitiative.com/advisories/ZDI-21-503/
MISC https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=10bf4e83167cc68595b85fd73bb91e8f2c086e36
CONFIRM https://security.netapp.com/advisory/ntap-20210706-0003/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:o:linux:linux_kernel:5.11.15:*:*:*:*:*:*:* linux_kernel == None == 5.11.15

Vulnerable and fixed packages

Source package Branch Version Maintainer Status