[ASB-A-147802478] kernel exploit: struct file UAF with epoll_ctl() add

Severity High

Affected Packages 1

Fixed Packages 1

CVEs 1

In do_epoll_ctl and ep_loop_check_proc of eventpoll.c, there is a possible use after free due to a logic error. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Package	Affected Version
pkg:generic/android#linux_kernel	>= :0, < :2020-12-05

Package	Fixed Version
pkg:generic/android#linux_kernel	= :2020-12-05

ID

ASB-A-147802478

Severity

high

URL

https://source.android.com/security/bulletin/2020-12-01

Published

2020-12-01T00:00:00
(3 years ago)

Modified

2024-07-31T14:43:08
(7 weeks ago)

Rights

Android Security Team

Other Advisories

Source	# ID	Name	URL
Advisory			https://source.android.com/security/bulletin/2020-12-01
Fix			https://android.googlesource.com/kernel/common/+/52c479697c9b
Fix			https://android.googlesource.com/kernel/common/+/a9ed4a6560b8

Type	Package URL	Namespace	Name / Product	Version	Distribution / Platform	Arch	Patch / Fix
Fixed	pkg:generic/android#linux_kernel		android	= :2020-12-05
Affected	pkg:generic/android#linux_kernel		android	>= :0 < :2020-12-05

# CVE	Description	CVSS	EPSS	EPSS Trend (30 days)	Affected Products	Weaknesses	Security Advisories	Exploits	PoC	Pubblication Date	Modification Date
# CVE	Description	CVSS	EPSS	EPSS Trend (30 days)	Affected Products	Weaknesses	Security Advisories	PoC	Pubblication Date	Modification Date