CVE-2022-48757 (GCVE-0-2022-48757)
Vulnerability from cvelistv5 – Published: 2024-06-20 11:13 – Updated: 2026-05-11 18:46
VLAI
EPSS
VEX
Title
net: fix information leakage in /proc/net/ptype
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: fix information leakage in /proc/net/ptype
In one net namespace, after creating a packet socket without binding
it to a device, users in other net namespaces can observe the new
`packet_type` added by this packet socket by reading `/proc/net/ptype`
file. This is minor information leakage as packet socket is
namespace aware.
Add a net pointer in `packet_type` to keep the net namespace of
of corresponding packet socket. In `ptype_seq_show`, this net pointer
must be checked when it is not NULL.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:10 UTC
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 , < 8f88c78d24f6f346919007cd459fd7e51a8c7779
(git)
Affected: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 , < be1ca30331c7923c6f376610c1bd6059be9b1908 (git) Affected: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 , < c38023032a598ec6263e008d62c7f02def72d5c7 (git) Affected: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 , < b67ad6170c0ea87391bb253f35d1f78857736e54 (git) Affected: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 , < e372ecd455b6ebc7720f52bf4b5f5d44d02f2092 (git) Affected: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 , < db044d97460ea792110eb8b971e82569ded536c6 (git) Affected: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 , < e43669c77cb3a742b7d84ecdc7c68c4167a7709b (git) Affected: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 , < 839ec7039513a4f84bfbaff953a9393471176bee (git) Affected: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 , < 47934e06b65637c88a762d9c98329ae6e3238888 (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.26
Unaffected: 0 , < 2.6.26 (semver) Unaffected: 4.4.302 , ≤ 4.4.* (semver) Unaffected: 4.9.300 , ≤ 4.9.* (semver) Unaffected: 4.14.265 , ≤ 4.14.* (semver) Unaffected: 4.19.228 , ≤ 4.19.* (semver) Unaffected: 5.4.176 , ≤ 5.4.* (semver) Unaffected: 5.10.96 , ≤ 5.10.* (semver) Unaffected: 5.15.19 , ≤ 5.15.* (semver) Unaffected: 5.16.5 , ≤ 5.16.* (semver) Unaffected: 5.17 , ≤ * (original_commit_for_fix) |
guessed |
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"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-06-28T10:57:02+00:00",
"cve": "CVE-2022-48757",
"id": "CVE-2022-48757",
"initial_release_date": "2022-01-01T00:00:00+00:00",
"product_status:fixed": "270",
"product_status:known_affected": "150",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: net: fix information leakage in /proc/net/ptype",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-48757.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-01T01:29:55Z",
"cve": "CVE-2022-48757",
"id": "CVE-2022-48757",
"initial_release_date": "2024-06-22T04:08:59Z",
"product_status:known_affected": "433",
"product_status:known_not_affected": "125",
"product_status:recommended": "20",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2022-48757",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-48757.json",
"version": "39"
},
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"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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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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