PT-2020-11378 · Google · Android Kernel

Jann Horn · Published 2020-01-08 · Updated 2022-10-14 · CVE-2020-0009

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Android kernel versions (affected versions not specified)

Description The issue is related to a permissions bypass in the calc vm may flags function of ashmem.c, which could allow for an arbitrary write to shared memory. This could lead to a local escalation of privilege by corrupting memory shared between processes, without requiring additional execution privileges. User interaction is not needed for exploitation.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2020-0009

DLA-2241-1

DLA-2241-2

Affected Products

Android Kernel

References · 15

• 🔥 https://exploit-db.com/exploits/47921 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2020-0009 · Vendor Advisory
• http://packetstormsecurity.com/files/155903/Android-ashmem-Read-Only-Bypasses.html · Patch
• https://ubuntu.com/security/CVE-2020-0009 · Vendor Advisory
• https://source.android.com/security/bulletin/2020-01-01 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2241-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-0009 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-0009 · Security Note
• https://osv.dev/vulnerability/CVE-2020-0009 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-0009 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-0009 · Vendor Advisory
• https://bugs.chromium.org/p/project-zero/issues/detail?id=1949 · Note
• https://t.me/defcon_news/35984 · Telegram Post
• https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html · Note
• https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html · Note