CVE-2021-34693

Public Exploit

Description

net/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.05%
Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623609211076%403c-app-gmx-bs04/T/
http://www.openwall.com/lists/oss-security/2021/06/15/1 mailing list patch exploit third party advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html third party advisory mailing list
https://www.debian.org/security/2021/dsa-4941 third party advisory vendor advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e87ddbe3942e27e939bdc02deb8579b0cbd8ecc

Frequently Asked Questions

What is the severity of CVE-2021-34693?
CVE-2021-34693 has been scored as a medium severity vulnerability.
How to fix CVE-2021-34693?
To fix CVE-2021-34693, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-34693 being actively exploited in the wild?
It is possible that CVE-2021-34693 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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