What is CVE-2021-34693?

CVE-2021-34693 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2021-34693 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-34693?

CVE-2021-34693 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Is there a patch available for CVE-2021-34693?

No patch is currently available for CVE-2021-34693. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-34693 actively exploited?

CVE-2021-34693 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-34693

Medium

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.

Package Linux Kernel

Published 2021-06-14

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness type

CWE-909

CVE-2021-34693 is classified as CWE-909

See CWE-909 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2021-34693 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html

Mailing List Third Party Advisory
Kernel.org
https://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623609211076%403c-app-gmx-bs04/T/
Debian Security
https://www.debian.org/security/2021/dsa-4941

Third Party Advisory
Kernel patch commit
http://www.openwall.com/lists/oss-security/2021/06/15/1
Patch
Kernel patch commit
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e87ddbe3942e27e939bdc02deb8579b0cbd8ecc
Patch

Details

CVE ID CVE-2021-34693

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2021-06-14

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-34693?

CVE-2021-34693 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2021-34693 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-34693?

CVE-2021-34693 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Is there a patch available for CVE-2021-34693?

No patch is currently available for CVE-2021-34693. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-34693 actively exploited?

No — CVE-2021-34693 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.