CVE-2023-53457
MEDIUM EPSS 4.2%
Published Oct 1, 20259mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Published Oct 1, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago
Description
In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the filesystem is read-only before calling txBegin, and returning with appropiate error code.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
4.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-476 NULL Pointer Dereference Memory Safety
Affected Products 12
| Vendor | Product | Version | Range |
|---|---|---|---|
| linux | linux_kernel | * | ≥2.6.12.1 – <4.14.324 |
| linux | linux_kernel | * | ≥4.15 – <4.19.293 |
| linux | linux_kernel | * | ≥4.20 – <5.4.255 |
| linux | linux_kernel | * | ≥5.5 – <5.10.192 |
| linux | linux_kernel | * | ≥5.11 – <5.15.123 |
| linux | linux_kernel | * | ≥5.16 – <6.1.42 |
| linux | linux_kernel | * | ≥6.2 – <6.4.7 |
| linux | linux_kernel | 2.6.12 | any |
| linux | linux_kernel | 2.6.12 | any |
| linux | linux_kernel | 2.6.12 | any |
| linux | linux_kernel | 2.6.12 | any |
| linux | linux_kernel | 2.6.12 | any |
References 8
- git.kernel.org https://git.kernel.org/stable/c/1b4c144767736221cad92c132f72b3c6ed06a0ea
- git.kernel.org https://git.kernel.org/stable/c/2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1
- git.kernel.org https://git.kernel.org/stable/c/3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3
- git.kernel.org https://git.kernel.org/stable/c/3e94d0d378d2754b26fc54b429582553f7b53e15
- git.kernel.org https://git.kernel.org/stable/c/47cfdc338d674d38f4b2f22b7612cc6a2763ba27
- git.kernel.org https://git.kernel.org/stable/c/a7225e9e09519deb7e0c42eb6070029cc456e84d
- git.kernel.org https://git.kernel.org/stable/c/a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2
- git.kernel.org https://git.kernel.org/stable/c/fd2db13fb72ff18c633a48229589d42ceb89d1f8
Remediation
- git.kernel.org https://git.kernel.org/stable/c/1b4c144767736221cad92c132f72b3c6ed06a0ea
- git.kernel.org https://git.kernel.org/stable/c/2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1
- git.kernel.org https://git.kernel.org/stable/c/3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3
- git.kernel.org https://git.kernel.org/stable/c/3e94d0d378d2754b26fc54b429582553f7b53e15
- git.kernel.org https://git.kernel.org/stable/c/47cfdc338d674d38f4b2f22b7612cc6a2763ba27
- git.kernel.org https://git.kernel.org/stable/c/a7225e9e09519deb7e0c42eb6070029cc456e84d
- git.kernel.org https://git.kernel.org/stable/c/a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2
- git.kernel.org https://git.kernel.org/stable/c/fd2db13fb72ff18c633a48229589d42ceb89d1f8