Ubuntu.comUB:CVE-2021-1048CVE-2021-1048
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
26.9%
In ep_loop_check_proc of eventpoll.c, there is a possible way to corrupt
memory 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-204573007References: Upstream kernel
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 16.04 | noarch | linux-hwe | < 4.15.0-126.129~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-raspi2 | < 4.15.0-1074.79 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux | < 4.15.0-126.129 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-kvm | < 4.15.0-1079.81 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-oracle | < 4.15.0-1059.65 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-oracle | < 4.15.0-1059.65~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-gkeop-5.15 | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1088.93 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1088.93~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-azure | < 4.15.0-1100.111~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
References
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=77f4689de17c0887775bb77896f4cc11a39bf848
launchpad.net/bugs/cve/CVE-2021-1048
nvd.nist.gov/vuln/detail/CVE-2021-1048
security-tracker.debian.org/tracker/CVE-2021-1048
source.android.com/security/bulletin/2021-11-01
www.cve.org/CVERecord?id=CVE-2021-1048
Related
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
26.9%