github - ghsa-jg34-cmw8-gw85

GHSA-JG34-CMW8-GW85

Vulnerability from github – Published: 2024-05-21 18:31 – Updated: 2024-11-07 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

int type = nla_type(nla);

if (type > XFRMA_MAX) { return -EOPNOTSUPP; }

@type is then used as an array index and can be used as a Spectre v1 gadget.

if (nla_len(nla) < compat_policy[type].len) {

array_index_nospec() can be used to prevent leaking content of kernel memory to malicious users.

Severity ?

2.5 (Low)


                  
                    CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52746"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T16:15:14Z",
    "severity": "LOW"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()\n\n  int type = nla_type(nla);\n\n  if (type \u003e XFRMA_MAX) {\n            return -EOPNOTSUPP;\n  }\n\n@type is then used as an array index and can be used\nas a Spectre v1 gadget.\n\n  if (nla_len(nla) \u003c compat_policy[type].len) {\n\narray_index_nospec() can be used to prevent leaking\ncontent of kernel memory to malicious users.",
  "id": "GHSA-jg34-cmw8-gw85",
  "modified": "2024-11-07T18:31:20Z",
  "published": "2024-05-21T18:31:19Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52746"
    },
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      "url": "https://git.kernel.org/stable/c/419674224390fca298020fc0751a20812f84b12d"
    },
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CVE-2023-52746 (GCVE-0-2023-52746)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:23 – Updated: 2025-05-04 07:42

Summary

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr() int type = nla_type(nla); if (type > XFRMA_MAX) { return -EOPNOTSUPP; } @type is then used as an array index and can be used as a Spectre v1 gadget. if (nla_len(nla) < compat_policy[type].len) { array_index_nospec() can be used to prevent leaking content of kernel memory to malicious users.

Severity ?

2.5 (Low)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-noinfo Not enough information

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/a893cc644812728e8…
	https://git.kernel.org/stable/c/5dc688fae6b7be9db…
	https://git.kernel.org/stable/c/419674224390fca29…
	https://git.kernel.org/stable/c/b6ee896385380aa62…

Impacted products

Vendor

Product

Version

Linux

Affected: 5106f4a8acff480e244300bc5097c0ad7048c3a2 , < a893cc644812728e86e9aff517fd5698812ecef0 (git)
Affected: 5106f4a8acff480e244300bc5097c0ad7048c3a2 , < 5dc688fae6b7be9dbbf5304a3d2520d038e06db5 (git)
Affected: 5106f4a8acff480e244300bc5097c0ad7048c3a2 , < 419674224390fca298020fc0751a20812f84b12d (git)
Affected: 5106f4a8acff480e244300bc5097c0ad7048c3a2 , < b6ee896385380aa621102e8ea402ba12db1cabff (git)

Linux

Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.168 , ≤ 5.10.* (semver)
Unaffected: 5.15.94 , ≤ 5.15.* (semver)
Unaffected: 6.1.12 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-JG34-CMW8-GW85

CVE-2023-52746 (GCVE-0-2023-52746)

Tags

Sightings

Nomenclature