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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2024-42314
HistoryAug 17, 2024 - 9:15 a.m.

CVE-2024-42314

2024-08-1709:15:11
Debian Security Bug Tracker
security-tracker.debian.org
18
linux kernel
vulnerability
cve-2024-42314
btrfs
use-after-free

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

Confidence

High

EPSS

0

Percentile

5.0%

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when adding pages to compressed bio At add_ra_bio_pages() we are accessing the extent map to calculate ‘add_size’ after we dropped our reference on the extent map, resulting in a use-after-free. Fix this by computing ‘add_size’ before dropping our extent map reference.

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

Confidence

High

EPSS

0

Percentile

5.0%