What is CVE-2020-10781?

CVE-2020-10781 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2020-10781 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2020-10781?

CVE-2020-10781 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2020-10781?

No patch is currently available for CVE-2020-10781. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2020-10781 actively exploited?

CVE-2020-10781 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2020-10781

Medium

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.

Package Linux Kernel

Published 2020-09-16

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-732

CVE-2020-10781 is classified as CWE-732

See CWE-732 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2020-10781 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10781

Issue Tracking Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html

Mailing List Third Party Advisory
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=853eab68afc80f59f36bbdeb715e5c88c501e680
Patch
Kernel patch commit
https://www.openwall.com/lists/oss-security/2020/06/18/1
Patch

Details

CVE ID CVE-2020-10781

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2020-09-16

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2020-10781?

CVE-2020-10781 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2020-10781 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2020-10781?

CVE-2020-10781 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2020-10781?

No patch is currently available for CVE-2020-10781. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2020-10781 actively exploited?

No — CVE-2020-10781 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.