Vulnerability-Lookup

GHSA-QHRQ-6M4Q-9X2X

Vulnerability from github – Published: 2023-10-05 21:30 – Updated: 2024-05-22 18:30

Details

A flaw was found in the IPv4 Resource Reservation Protocol (RSVP) classifier in the Linux kernel. The xprt pointer may go beyond the linear part of the skb, leading to an out-of-bounds read in the rsvp_classify function. This issue may allow a local user to crash the system and cause a denial of service.

Severity

6.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2023-42755"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-10-05T19:15:11Z",
    "severity": "MODERATE"
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  "id": "GHSA-qhrq-6m4q-9x2x",
  "modified": "2024-05-22T18:30:37Z",
  "published": "2023-10-05T21:30:46Z",
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42755"
    },
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    },
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    },
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      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-42755 (GCVE-0-2023-42755)

Vulnerability from cvelistv5 – Published: 2023-10-05 18:25 – Updated: 2025-11-08 07:10

Title

Kernel: rsvp: out-of-bounds read in rsvp_classify()

Summary

A flaw was found in the IPv4 Resource Reservation Protocol (RSVP) classifier in the Linux kernel. The xprt pointer may go beyond the linear part of the skb, leading to an out-of-bounds read in the `rsvp_classify` function. This issue may allow a local user to crash the system and cause a denial of service.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-125 - Out-of-bounds Read

Assigner

redhat

References

7 references

URL	Tags
https://access.redhat.com/errata/RHSA-2024:2950	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3138	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-42755	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2239847	issue-trackingx_refsource_REDHAT
https://seclists.org/oss-sec/2023/q3/229
https://lists.debian.org/debian-lts-announce/2023…	x_transferred
https://lists.debian.org/debian-lts-announce/2024…	x_transferred

Impacted products

5 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.rt7.342.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::nfv cpe:/a:redhat:enterprise_linux:8::realtime
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8::baseos cpe:/a:redhat:enterprise_linux:8::crb
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Date Public

2023-09-25 00:00

Show details on NVD website

JSON

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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-QHRQ-6M4Q-9X2X

CVE-2023-42755 (GCVE-0-2023-42755)

Tags

Sightings

Nomenclature