fkie_cve-2023-52810
Vulnerability from fkie_nvd
Published
2024-05-21 16:15
Modified
2024-11-21 08:40
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs/jfs: Add check for negative db_l2nbperpage
l2nbperpage is log2(number of blks per page), and the minimum legal
value should be 0, not negative.
In the case of l2nbperpage being negative, an error will occur
when subsequently used as shift exponent.
Syzbot reported this bug:
UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:799:12
shift exponent -16777216 is negative
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/jfs: Add check for negative db_l2nbperpage\n\nl2nbperpage is log2(number of blks per page), and the minimum legal\nvalue should be 0, not negative.\n\nIn the case of l2nbperpage being negative, an error will occur\nwhen subsequently used as shift exponent.\n\nSyzbot reported this bug:\n\nUBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:799:12\nshift exponent -16777216 is negative"
},
{
"lang": "es",
"value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: fs/jfs: agregue verificaci\u00f3n para db_l2nbperpage negativo, l2nbperpage es log2 (n\u00famero de bloques por p\u00e1gina) y el valor m\u00ednimo legal debe ser 0, no negativo. En el caso de que l2nbperpage sea negativo, se producir\u00e1 un error cuando se utilice posteriormente como exponente de desplazamiento. Syzbot inform\u00f3 este error: UBSAN: desplazamiento fuera de los l\u00edmites en fs/jfs/jfs_dmap.c:799:12 el exponente de desplazamiento -16777216 es negativo"
}
],
"id": "CVE-2023-52810",
"lastModified": "2024-11-21T08:40:38.193",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.5,
"impactScore": 5.9,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
},
"published": "2024-05-21T16:15:19.270",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0cb567e727339a192f9fd0db00781d73a91d15a6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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},
{
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},
{
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"url": "https://git.kernel.org/stable/c/524b4f203afcf87accfe387e846f33f916f0c907"
},
{
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"url": "https://git.kernel.org/stable/c/525b861a008143048535011f3816d407940f4bfa"
},
{
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},
{
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},
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"url": "https://git.kernel.org/stable/c/a81a56b4cbe3142cc99f6b98e8f9b3a631c768e1"
},
{
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"url": "https://git.kernel.org/stable/c/cc61fcf7d1c99f148fe8ddfb5c6ed0bb75861f01"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/0cb567e727339a192f9fd0db00781d73a91d15a6"
},
{
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"url": "https://git.kernel.org/stable/c/1a7c53fdea1d189087544d9a606d249e93c4934b"
},
{
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"url": "https://git.kernel.org/stable/c/491085258185ffc4fb91555b0dba895fe7656a45"
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{
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},
{
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/5f148b16972e5f4592629b244d5109b15135f53f"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/8f2964df6bfce9d92d81ca552010b8677af8d9dc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/a81a56b4cbe3142cc99f6b98e8f9b3a631c768e1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/cc61fcf7d1c99f148fe8ddfb5c6ed0bb75861f01"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-1335"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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