Vulnerability 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.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.25, <= 5.12.10 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/06/15/1ExploitMailing ListPatch
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e87d
- https://lists.debian.org/debian-lts-announce/2021/07/msg00014.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00015.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00016.htmlMailing ListThird Party Advisory
- https://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623
- https://www.debian.org/security/2021/dsa-4941Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/06/15/1ExploitMailing ListPatch
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e87d
- https://lists.debian.org/debian-lts-announce/2021/07/msg00014.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00015.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00016.htmlMailing ListThird Party Advisory
- https://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623
- https://www.debian.org/security/2021/dsa-4941Third Party Advisory
FAQ
What is CVE-2021-34693?
CVE-2021-34693 is a vulnerability with a CVSS score of 5.5 (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.
How severe is CVE-2021-34693?
CVE-2021-34693 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-34693?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.