Vulnerability-Lookup

GHSA-Q43W-G673-M6F4

Vulnerability from github – Published: 2024-04-17 12:32 – Updated: 2024-11-04 21:30

Details

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

cifs: fix underflow in parse_server_interfaces()

In this loop, we step through the buffer and after each item we check if the size_left is greater than the minimum size we need. However, the problem is that "bytes_left" is type ssize_t while sizeof() is type size_t. That means that because of type promotion, the comparison is done as an unsigned and if we have negative bytes left the loop continues instead of ending.

Severity

6.7 (Medium)


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

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  "affected": [],
  "aliases": [
    "CVE-2024-26828"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
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    "github_reviewed_at": null,
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    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix underflow in parse_server_interfaces()\n\nIn this loop, we step through the buffer and after each item we check\nif the size_left is greater than the minimum size we need.  However,\nthe problem is that \"bytes_left\" is type ssize_t while sizeof() is type\nsize_t.  That means that because of type promotion, the comparison is\ndone as an unsigned and if we have negative bytes left the loop\ncontinues instead of ending.",
  "id": "GHSA-q43w-g673-m6f4",
  "modified": "2024-11-04T21:30:26Z",
  "published": "2024-04-17T12:32:03Z",
  "references": [
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    },
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      "url": "https://git.kernel.org/stable/c/cffe487026be13eaf37ea28b783d9638ab147204"
    },
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}

CVE-2024-26828 (GCVE-0-2024-26828)

Vulnerability from cvelistv5 – Published: 2024-04-17 09:43 – Updated: 2026-05-11 20:04

Title

cifs: fix underflow in parse_server_interfaces()

Summary

In the Linux kernel, the following vulnerability has been resolved: cifs: fix underflow in parse_server_interfaces() In this loop, we step through the buffer and after each item we check if the size_left is greater than the minimum size we need. However, the problem is that "bytes_left" is type ssize_t while sizeof() is type size_t. That means that because of type promotion, the comparison is done as an unsigned and if we have negative bytes left the loop continues instead of ending.

Severity

6.7 (Medium)


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

CWE

CWE-noinfo Not enough information

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/7190353835b4a219a…
https://git.kernel.org/stable/c/f7ff1c89fb6e9610d…
https://git.kernel.org/stable/c/df2af9fdbc4ddde18…
https://git.kernel.org/stable/c/cffe487026be13eaf…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: fe856be475f7cf5ffcde57341d175ce9fd09434b , < 7190353835b4a219abb70f90b06cdcae97f11512 (git) Affected: fe856be475f7cf5ffcde57341d175ce9fd09434b , < f7ff1c89fb6e9610d2b01c1821727729e6609308 (git) Affected: fe856be475f7cf5ffcde57341d175ce9fd09434b , < df2af9fdbc4ddde18a3371c4ca1a86596e8be301 (git) Affected: fe856be475f7cf5ffcde57341d175ce9fd09434b , < cffe487026be13eaf37ea28b783d9638ab147204 (git)
Linux	Linux	Affected: 4.18 Unaffected: 0 , < 4.18 (semver) Unaffected: 6.1.79 , ≤ 6.1.* (semver) Unaffected: 6.6.18 , ≤ 6.6.* (semver) Unaffected: 6.7.6 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-Q43W-G673-M6F4

CVE-2024-26828 (GCVE-0-2024-26828)

Tags

Sightings

Nomenclature