CVE-2023-52612 (GCVE-0-2023-52612)
Vulnerability from cvelistv5 – Published: 2024-03-18 10:07 – Updated: 2026-08-05 09:10
VLAI
EPSS
VEX
Title
crypto: scomp - fix req->dst buffer overflow
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: scomp - fix req->dst buffer overflow
The req->dst buffer size should be checked before copying from the
scomp_scratch->dst to avoid req->dst buffer overflow problem.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-18 15:42 UTC
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1ab53a77b772bf7369464a0e4fa6fd6499acf8f1 , < 1142d65c5b881590962ad763f94505b6dd67d2fe
(git)
Affected: 1ab53a77b772bf7369464a0e4fa6fd6499acf8f1 , < e0e3f4a18784182cfe34e20c00eca11e78d53e76 (git) Affected: 1ab53a77b772bf7369464a0e4fa6fd6499acf8f1 , < 4518dc468cdd796757190515a9be7408adc8911e (git) Affected: 1ab53a77b772bf7369464a0e4fa6fd6499acf8f1 , < a5f2f91b3fd7387e5102060809316a0f8f0bc625 (git) Affected: 1ab53a77b772bf7369464a0e4fa6fd6499acf8f1 , < 4df0c942d04a67df174195ad8082f6e30e7f71a5 (git) Affected: 1ab53a77b772bf7369464a0e4fa6fd6499acf8f1 , < 7d9e5bed036a7f9e2062a137e97e3c1e77fb8759 (git) Affected: 1ab53a77b772bf7369464a0e4fa6fd6499acf8f1 , < 71c6670f9f032ec67d8f4e3f8db4646bf5a62883 (git) Affected: 1ab53a77b772bf7369464a0e4fa6fd6499acf8f1 , < 744e1885922a9943458954cfea917b31064b4131 (git) |
guessed | |
| Linux | Linux |
Affected:
4.10
Unaffected: 0 , < 4.10 (semver) Unaffected: 4.19.306 , ≤ 4.19.* (semver) Unaffected: 5.4.268 , ≤ 5.4.* (semver) Unaffected: 5.10.209 , ≤ 5.10.* (semver) Unaffected: 5.15.148 , ≤ 5.15.* (semver) Unaffected: 6.1.75 , ≤ 6.1.* (semver) Unaffected: 6.6.14 , ≤ 6.6.* (semver) Unaffected: 6.7.2 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix) |
guessed |
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"value": "AV:L - The vulnerability is reached via the local madvise(MADV_PAGEOUT) syscall path into zswap_store \u2192 crypto_acomp_compress \u2192 scomp_acomp_comp_decomp; there is no network-facing entry to the scomp acomp wrapper.\nAC:L - An unprivileged attacker can reliably trigger the bug by faulting incompressible anonymous pages and calling MADV_PAGEOUT when zswap is enabled, fully controlling the compressed input with no race or other attacker-uncontrollable condition required.\nPR:L - madvise(MADV_PAGEOUT) on the attacker\u2019s own anonymous VMAs requires only an unprivileged local account; no capabilities or init-namespace root are needed along the path.\nUI:N - Exploitation requires no victim action; the attacker triggers pageout and compression directly against their own memory.\nS:U - Impact is confined to the local kernel/host authority (memory corruption / DoS / potential privilege escalation); it does not cross a VM, IOMMU, or other security boundary.\nC:H - The bug is a kernel out-of-bounds write of attacker-influenced compression output past the caller\u2019s dst size, which is memory corruption that can be leveraged for arbitrary read/info disclosure.\nI:H - Out-of-bounds write into kernel memory via scatterwalk_map_and_copy after the compressor returns a dlen larger than the original destination buffer enables integrity compromise and control-flow hijacking primitives.\nA:H - The overflow is demonstrably reachable and causes a kernel NULL pointer dereference / general protection fault oops in scatterwalk_copychunks, resulting in full availability loss."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T09:10:42.206Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/1142d65c5b881590962ad763f94505b6dd67d2fe"
},
{
"url": "https://git.kernel.org/stable/c/e0e3f4a18784182cfe34e20c00eca11e78d53e76"
},
{
"url": "https://git.kernel.org/stable/c/4518dc468cdd796757190515a9be7408adc8911e"
},
{
"url": "https://git.kernel.org/stable/c/a5f2f91b3fd7387e5102060809316a0f8f0bc625"
},
{
"url": "https://git.kernel.org/stable/c/4df0c942d04a67df174195ad8082f6e30e7f71a5"
},
{
"url": "https://git.kernel.org/stable/c/7d9e5bed036a7f9e2062a137e97e3c1e77fb8759"
},
{
"url": "https://git.kernel.org/stable/c/71c6670f9f032ec67d8f4e3f8db4646bf5a62883"
},
{
"url": "https://git.kernel.org/stable/c/744e1885922a9943458954cfea917b31064b4131"
}
],
"title": "crypto: scomp - fix req-\u003edst buffer overflow",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-52612",
"datePublished": "2024-03-18T10:07:47.204Z",
"dateReserved": "2024-03-06T09:52:12.088Z",
"dateUpdated": "2026-08-05T09:10:42.206Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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