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Review reviewHigh

CVE-2023-52600

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: jfs: fix uaf in jfs_evict_inode When the execution of diMount(ipimap) fails, the object ipimap that has been released may be accessed in diFreeSpecial(). Asynchronous ipimap release occurs when rcu_core() calls jfs_free_node(). Therefore, when diMount(ipimap) fails, sbi->ipimap should not be initialized as ipimap.

CVSS
7.8
EPSS
0.28%
20.2% percentile
CISA KEV
Not listed
Published
2024.03.06
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.28%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: jfs: fix uaf in jfs_evict_inode When the execution of diMount(ipimap) fails, the object ipimap that has been released may be accessed in diFreeSpecial(). Asynchronous ipimap release occurs when rcu_core() calls jfs_free_node(). Therefore, when diMount(ipimap) fails, sbi->ipimap should not be initialized as ipimap.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 81b4249ef37297fb17ba102a524039a05c6c5d35, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 93df0a2a0b3cde2d7ab3a52ed46ea1d6d4aaba5f, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < bc6ef64dbe71136f327d63b2b9071b828af2c2a8, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8e44dc3f96e903815dab1d74fff8faafdc6feb61, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 32e8f2d95528d45828c613417cb2827d866cbdce, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1696d6d7d4a1b373e96428d0fe1166bd7c3c795e, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < bacdaa04251382d7efd4f09f9a0686bfcc297e2e, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e0e1958f4c365e380b17ccb35617345b31ef7bf3, >= 2.6.12, < 4.19.307, >= 4.20 < 5.4.269, >= 5.5 < 5.10.210, >= 5.11 < 5.15.149, >= 5.16 < 6.1.77, >= 6.2 < 6.6.16, >= 6.7 < 6.7.4
Fixed versions
4.19.307, 5.4.269, 5.10.210, 5.15.149, 6.1.77, 6.6.16, 6.7.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416
CVE-2023-52600 — Linux Linux, linux kernel | SECUFOCUS NOW