CVE-2021-31916
An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12.
Does this matter?
Lower severity and a low EPSS score (0.70%). Track it; it rarely justifies an emergency change on its own.
Description
An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
- CVSS 3.1
- 6.7 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.70% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel · redhat/enterprise linux · debian/debian linux
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1946965Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/4edbe1d7bcffcd6269f3b5eb63f710393ff2ec7aPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing List, Third Party Advisory
- https://seclists.org/oss-sec/2021/q1/268Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1946965Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/4edbe1d7bcffcd6269f3b5eb63f710393ff2ec7aPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing List, Third Party Advisory
- https://seclists.org/oss-sec/2021/q1/268Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.