5.5
Medium
CVE-2020-10781 A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and the…
Description
A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| kernel | Versions not published |
References
- git.kernel.org git.kernel.org
- bugzilla.redhat.com bugzilla.redhat.com
- www.openwall.com www.openwall.com
- [debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update lists.debian.org
Timeline
- Published
- Last modified
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