01 Record

CVE-2022-49707

ext4: add reserved GDT blocks check

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

ext4: add reserved GDT blocks check

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 20.2% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-02-26 02:24Z1 YR AGO

Last updated

2026-05-11 19:05Z5 MO AGO

Reserved

2025-02-26

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

4836ac31ab159eb6965f1e406d1ceb7eb6b4419396ec5f64dabcaebb113dd1c0

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux1c6bd7173d66b3dfdefcedb38cabc1fb03997509 to < 0dc2fca8e4f9ac4a40e8424a10163369cca0cc06, 1c6bd7173d66b3dfdefcedb38cabc1fb03997509 to < 7c921328ac760bba780bdace41f4cd045f7f1405, 1c6bd7173d66b3dfdefcedb38cabc1fb03997509 to < b9747263b13e5290ac4d63bec47e38f701303cad, 1c6bd7173d66b3dfdefcedb38cabc1fb03997509 to < fba54289176702a7caac0b64738406775817f451, 1c6bd7173d66b3dfdefcedb38cabc1fb03997509 to < bfd004a1d3a062aac300523d406ac1f3e5f1a82c, 1c6bd7173d66b3dfdefcedb38cabc1fb03997509 to < 33b1bba31f4c784d33d2c2517964bdccdc9204cd, 1c6bd7173d66b3dfdefcedb38cabc1fb03997509 to < af75c481a2e45e70f62f5942c93695e95bf7bd21, 1c6bd7173d66b3dfdefcedb38cabc1fb03997509 to < b55c3cd102a6f48b90e61c44f7f3dda8c290c694, 3.7—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/0dc2fca8e4f9ac4a40e8424a10163369cca0cc06
git.kernel.orghttps://git.kernel.org/stable/c/7c921328ac760bba780bdace41f4cd045f7f1405
git.kernel.orghttps://git.kernel.org/stable/c/b9747263b13e5290ac4d63bec47e38f701303cad
git.kernel.orghttps://git.kernel.org/stable/c/fba54289176702a7caac0b64738406775817f451
git.kernel.orghttps://git.kernel.org/stable/c/bfd004a1d3a062aac300523d406ac1f3e5f1a82c
git.kernel.orghttps://git.kernel.org/stable/c/33b1bba31f4c784d33d2c2517964bdccdc9204cd
git.kernel.orghttps://git.kernel.org/stable/c/af75c481a2e45e70f62f5942c93695e95bf7bd21
git.kernel.orghttps://git.kernel.org/stable/c/b55c3cd102a6f48b90e61c44f7f3dda8c290c694

07 Fixed in

Debian 12

linux
Fixed in 5.18.14-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 5.18.14-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 5.18.14-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.