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Medium 5.5Published Jun 14, 2021
CVE-2021-34693net/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.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Modified
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 2.6.25 through 5.12.10 | NVD |
debian debian_linux debian:debian_linux | 9.0; 10.0 | NVD |
References
- https://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623609211076%403c-app-gmx-bs04/T/
- http://www.openwall.com/lists/oss-security/2021/06/15/1mailing-list
- https://lists.debian.org/debian-lts-announce/2021/07/msg00016.htmlmailing-list
- https://lists.debian.org/debian-lts-announce/2021/07/msg00014.htmlmailing-list
- https://lists.debian.org/debian-lts-announce/2021/07/msg00015.htmlmailing-list
- https://www.debian.org/security/2021/dsa-4941vendor-advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e87ddbe3942e27e939bdc02deb8579b0cbd8ecc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.