CVE-2020-0009

Name: CVE-2020-0009
Creator: NVD / NIST
Published: 2020-01-08T16:15:11.577+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2020-0009 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In calc_vm_may_flags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

In calc_vm_may_flags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-142938932

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.69%

48.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-276

Affected Software

Vendor	Product	Versions
Google	Android	All versions
Debian	Debian Linux	8.0

References

http://packetstormsecurity.com/files/155903/Android-ashmem-Read-Only-Bypasses.htmlPatch, Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing List, Third Party Advisory
https://source.android.com/security/bulletin/2020-01-01Vendor Advisory
http://packetstormsecurity.com/files/155903/Android-ashmem-Read-Only-Bypasses.htmlPatch, Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing List, Third Party Advisory
https://source.android.com/security/bulletin/2020-01-01Vendor Advisory

Timeline

Published: Jan 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-0009?

How severe is CVE-2020-0009?

CVE-2020-0009 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2020-0009?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-0009?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST