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ubuntucveUbuntu.comUB:CVE-2023-31248
HistoryJul 05, 2023 - 12:00 a.m.

CVE-2023-31248

2023-07-0500:00:00
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

14.9%

JSON

Linux Kernel nftables Use-After-Free Local Privilege Escalation
Vulnerability; nft_chain_lookup_byid() failed to check whether a chain
was active and CAP_NET_ADMIN is in any user or network namespace

Notes

Author Note
eslerm reporter at Pwn2Own 2023 as ZDI-CAN-20717 CWE-416
sbeattie requires CAP_NET_ADMIN in any namespace, not just the init namespace.
OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchlinux< 5.15.0-78.85UNKNOWN
ubuntu23.04noarchlinux< 6.2.0-26.26UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1040.45UNKNOWN
ubuntu23.04noarchlinux-aws< 6.2.0-1008.8UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1040.45~20.04.1UNKNOWN
ubuntu22.04noarchlinux-aws-5.19< 5.19.0-1029.30~22.04.1UNKNOWN
ubuntu22.04noarchlinux-azure< 5.15.0-1042.49UNKNOWN
ubuntu23.04noarchlinux-azure< 6.2.0-1008.8UNKNOWN
ubuntu20.04noarchlinux-azure-5.15< 5.15.0-1042.49~20.04.1UNKNOWN
ubuntu22.04noarchlinux-azure-fde< 5.15.0-1042.49UNKNOWN
Rows per page:
1-10 of 461

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(RHSA-2023:5575) Important: kpatch-patch security update
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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

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

14.9%

JSON
Related for UB:CVE-2023-31248
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