CVE-2021-39698 — Use After Free in Google Android

CWE-416 — Use After Free12 documents8 sources
Severity
7.8HIGHNVD
OSV6.5
EPSS
0.0%
top 91.34%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Linux KernelDebian LinuxGoogle Android
Timeline
PublishedMar 16
Latest updateApr 6

Description

In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-185125206References: Upstream kernel

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages3 packages

▶Debianlinux/linux_kernel< 5.10.92-1+3
▶debiandebian/linux< linux 5.15.15-1 (bookworm)

Patches

Patch: source.android.com ↗Patch: source.android.com ↗

🔴Vulnerability Details

5
OSV
linux-azure-5.13, linux-oracle-5.13 vulnerabilities↗2022-04-06
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OSV
linux, linux-aws, linux-aws-5.13, linux-gcp, linux-gcp-5.13, linux-hwe-5.13, linux-kvm, linux-oracle, linux-raspi vulnerabilities↗2022-03-22
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GHSA
GHSA-32r8-256r-q9p6: In aio_poll_complete_work of aio↗2022-03-17
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OSV
CVE-2021-39698: In aio_poll_complete_work of aio↗2022-03-16
▶
OSV
CVE-2021-39698: In aio_poll_complete_work of aio↗2022-03-01
▶

📋Vendor Advisories

5
Ubuntu
Linux kernel vulnerabilities↗2022-04-06
▶
Ubuntu
Linux kernel vulnerabilities↗2022-03-22
▶
Red Hat
kernel: use-after-free in the file polling implementation↗2022-03-07
▶
Android
CVE-2021-39698: Kernel↗2022-03-01
▶
Debian
CVE-2021-39698: linux - In aio_poll_complete_work of aio.c, there is a possible memory corruption due to...↗2021
▶

💬Community

1
Bugzilla
CVE-2021-39698 kernel: use-after-free in the file polling implementation↗2022-03-11
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CVE-2021-39698 — Use After Free in Google Android | cvebase