CVE-2023-52448

Aliases:UBUNTU-CVE-2023-52448DEBIAN-CVE-2023-52448
Advisory lineage Upstream: 0 Downstream: 31
Modified
Published: 22 Feb 2024, 16:21
Last modified:11 May 2026, 19:27

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.24% LOW
0% probability +0.24%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 Feb 2024, 16:21
Published
Vulnerability first disclosed
11 May 2026, 19:27
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump Syzkaller has reported a NULL pointer dereference when accessing rgd->rd_rgl in gfs2_rgrp_dump(). This can happen when creating rgd->rd_gl fails in read_rindex_entry(). Add a NULL pointer check in gfs2_rgrp_dump() to prevent that.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.24%• Percentile: 16%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • debian•linux

    < 5.10.209-1 | < 6.1.76-1 | < 6.6.15-1 | < 6.6.15-1

  • ubuntu•linux

    < 5.4.0-176.196 | < 5.15.0-102.112

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    < 5.4.0-1122.132 | < 5.15.0-1057.63

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1057.63~20.04.1

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1122.132~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    all

  • ubuntu•linux-aws-6.5

    all

  • ubuntu•linux-aws-fips

    < 5.4.0-1122.132+fips1 | all | < 5.15.0-1057.63+fips1

  • ubuntu•linux-azure

    all | < 5.4.0-1127.134 | < 5.15.0-1060.69

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1060.69~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1127.134~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.2

    all

  • ubuntu•linux-azure-6.5

    < 6.5.0-1022.23~22.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | < 5.15.0-1060.69.1 | all

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.2

    all

  • ubuntu•linux-azure-fde-6.8

    all

  • ubuntu•linux-azure-fips

    < 5.4.0-1127.134+fips1 | all | < 5.15.0-1060.69+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1082.89 | < 5.15.0-1040.42

  • ubuntu•linux-fips

    < 5.4.0-1096.106 | all | < 5.15.0-102.112+fips1

  • ubuntu•linux-gcp

    all | < 5.4.0-1126.135 | < 5.15.0-1055.63

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1055.63~20.04.1

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1126.135~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.2

    all

  • ubuntu•linux-gcp-6.5

    < 6.5.0-1022.24~22.04.1

  • ubuntu•linux-gcp-fips

    < 5.4.0-1126.135+fips1 | all | < 5.15.0-1055.63+fips2

  • ubuntu•linux-gke

    all | < 5.15.0-1054.59

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    all

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.4.0-1089.93 | < 5.15.0-1040.46

  • ubuntu•linux-gkeop-5.15

    < 5.15.0-1040.46~20.04.1

Showing first 50 affected entries in server-rendered view.

References (25)