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osvGoogleOSV:ASB-A-343727534
HistoryAug 01, 2024 - 12:00 a.m.

SO_CNX_ADVICE Linux kernel LPE 0-day vulnerability

2024-08-0100:00:00
Google
osv.dev
42
linux kernel
lpe
vulnerability
sock.h
failure to clear
use after free
remote code execution
system execution privileges

CVSS3

7.8

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

AI Score

7.5

Confidence

Low

EPSS

0.001

Percentile

43.6%

In __dst_negative_advice of sock.h, there is a possible failure to clear sk->sk_dst_cache in the correct order resulting in a use after free. This could lead to remote code execution with System execution privileges needed. User interaction is not needed for exploitation.

References

CVSS3

7.8

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

AI Score

7.5

Confidence

Low

EPSS

0.001

Percentile

43.6%