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ubuntucveUbuntu.comUB:CVE-2022-2585
HistoryAug 09, 2022 - 12:00 a.m.

CVE-2022-2585

2022-08-0900:00:00
ubuntu.com
ubuntu.com
43

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

6 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%

It was discovered that when exec’ing from a non-leader thread, armed POSIX
CPU timers would be left on a list but freed, leading to a use-after-free.

Notes

Author Note
sbeattie introduced by 55e8c8eb2c7b (“posix-cpu-timers: Store a reference to a pid not a task”) (v5.7)
eslerm CWE-416
OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchlinux< 5.15.0-46.49UNKNOWN
ubuntu22.10noarchlinux< 5.19.0-18.18UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1017.21UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1017.21~20.04.1UNKNOWN
ubuntu22.04noarchlinux-azure< 5.15.0-1017.20UNKNOWN
ubuntu20.04noarchlinux-azure-5.15< 5.15.0-1017.20~20.04.1UNKNOWN
ubuntu22.04noarchlinux-azure-fde< 5.15.0-1017.20UNKNOWN
ubuntu20.04noarchlinux-azure-fde-5.15< 5.15.0-1017.20~20.04.1UNKNOWN
ubuntu22.04noarchlinux-gcp< 5.15.0-1016.21UNKNOWN
ubuntu20.04noarchlinux-gcp-5.15< 5.15.0-1016.21~20.04.1UNKNOWN
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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

6 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%