CVE-2023-53357: linux Out-of-bounds Read
Vulnerability summary
CVE-2023-53357 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 13 · Related 13Timeline
- 17-09-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid10: check slab-out-of-bounds in md_bitmap_get_counter If we write a large number to md/bitmap_set_bits, md_bitmap_checkpage() will return -EINVAL because 'page >= bitmap->pages', but the return value was not checked immediately in md_bitmap_get_counter() in order to set *blocks value and slab-out-of-bounds occurs. Move check of 'page >= bitmap->pages' to md_bitmap_get_counter() and return directly if true.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- NVDNIST7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS trend
Probability
0.20%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
0.00 pp
From 0.19% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu123 products
- linuxAll versions (No fix recorded) | < 5.4.0-166.183 | < 5.15.0-86.96
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1113.123 | < 5.15.0-1047.52
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ ef4256733506f2459a0c436b62267d22a3f0cec6, < 374fb914304d9b500721007f3837ea8f1f9a2418 | ≥ ef4256733506f2459a0c436b62267d22a3f0cec6, < b0b971fe7d61411ede63c3291764dbde1577ef2c | ≥ ef4256733506f2459a0c436b62267d22a3f0cec6, < 39fa14e824acfd470db4f42c354297456bd82b53 | ≥ ef4256733506f2459a0c436b62267d22a3f0cec6, < a134dd582c0d5b6068efa308bd485cf1d00b3f65 | ≥ ef4256733506f2459a0c436b62267d22a3f0cec6, < be1a3ec63a840cc9e59a033acf154f56255699a1 | ≥ ef4256733506f2459a0c436b62267d22a3f0cec6, < 152bb26796ff054af50b2ee1b3ca56e364e4f61b | ≥ ef4256733506f2459a0c436b62267d22a3f0cec6, < bea301c046110bf421a3ce153fb868cb8d618e90 | ≥ ef4256733506f2459a0c436b62267d22a3f0cec6, < 301867b1c16805aebbc306aafa6ecdc68b73c7e5 | 2.6.36
- linux_kernel≥ 2.6.36, < 4.19.291 | ≥ 4.20, < 5.4.251 | ≥ 5.5, < 5.10.188 | ≥ 5.11, < 5.15.121 | ≥ 5.16, < 6.1.39 | ≥ 6.2, < 6.3.13 | ≥ 6.4, < 6.4.4
Debian1 product
- linux< 6.1.52-1 | < 6.4.4-1
3 vendors · 126 products
