CVE-2020-27675
- State
- Published
- Severity
- Not scored
- Published
- Oct 22, 2020
- Updated
- Aug 4, 2024
- Reserved
- Oct 22, 2020
Description
An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://xenbits.xen.org/xsa/advisory-331.html
- https://github.com/torvalds/linux/commit/073d0552ead5bfc7a3a9c01de590e924f11b5dd2
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073d0552ead5bfc7a3a9c01de590e924f11b5dd2
- FEDORA-2020-474d747b60vendor-advisory
- FEDORA-2020-09e4d062fevendor-advisory
- FEDORA-2020-920a258c79vendor-advisory
- GLSA-202011-06vendor-advisory
- [debian-lts-announce] 20201210 [SECURITY] [DLA 2483-1] linux-4.19 security updatemailing-list
- [debian-lts-announce] 20201218 [SECURITY] [DLA 2494-1] linux security updatemailing-list
- [oss-security] 20210119 Xen Security Advisory 331 v3 (CVE-2020-27675) - Race condition in Linux event handler may crash dom0mailing-list
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.