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ubuntucveUbuntu.comUB:CVE-2022-2327
HistoryJul 22, 2022 - 12:00 a.m.

CVE-2022-2327

2022-07-2200:00:00
ubuntu.com
ubuntu.com
22

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

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

10.8%

io_uring use work_flags to determine which identity need to grab from the
calling process to make sure it is consistent with the calling process when
executing IORING_OP. Some operations are missing some types, which can lead
to incorrect reference counts which can then lead to a double free. We
recommend upgrading the kernel past commit
df3f3bb5059d20ef094d6b2f0256c4bf4127a859

Notes

Author Note
rodrigo-zaiden duplicate or much related to CVE-2022-2209
sbeattie initial investigation indicates that this likely only affects 5.10 and earlier, but not as far back as 5.4. But everything about this issue is unclear.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux-raspi-5.4< anyUNKNOWN

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

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

10.8%