Vulnerability-Lookup

SUSE-SU-2024:4157-1

Vulnerability from csaf_suse - Published: 2024-12-03 14:26 - Updated: 2024-12-03 14:26

Summary

Security update for bpftool

Severity

Moderate

Notes

Title of the patch: Security update for bpftool

Description of the patch: This update for bpftool fixes the following issues: - CVE-2024-49987: Fixed undefined behavior in qsort(NULL, 0, ...) (bsc#1232258)

Patchnames: SUSE-2024-4157,SUSE-SLE-Module-Basesystem-15-SP6-2024-4157,openSUSE-SLE-15.6-2024-4157

CVE-2024-49987

5.8 (Medium)


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

Affected products

Recommended 8 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP6:bpftool-6.4.0-150600.19.6.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP6:bpftool-6.4.0-150600.19.6.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP6:bpftool-6.4.0-150600.19.6.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP6:bpftool-6.4.0-150600.19.6.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.6:bpftool-6.4.0-150600.19.6.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.6:bpftool-6.4.0-150600.19.6.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.6:bpftool-6.4.0-150600.19.6.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.6:bpftool-6.4.0-150600.19.6.1.x86_64	—	Vendor Fix

Threats

Impact moderate

References

8 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1232258	self
https://www.suse.com/security/cve/CVE-2024-49987/	self
https://www.suse.com/security/cve/CVE-2024-49987	external
https://bugzilla.suse.com/1232258	external

JSON

To clipboard

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CVE-2024-49987 (GCVE-0-2024-49987)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2026-05-11 20:43

Title

bpftool: Fix undefined behavior in qsort(NULL, 0, ...)

Summary

In the Linux kernel, the following vulnerability has been resolved: bpftool: Fix undefined behavior in qsort(NULL, 0, ...) When netfilter has no entry to display, qsort is called with qsort(NULL, 0, ...). This results in undefined behavior, as UBSan reports: net.c:827:2: runtime error: null pointer passed as argument 1, which is declared to never be null Although the C standard does not explicitly state whether calling qsort with a NULL pointer when the size is 0 constitutes undefined behavior, Section 7.1.4 of the C standard (Use of library functions) mentions: "Each of the following statements applies unless explicitly stated otherwise in the detailed descriptions that follow: If an argument to a function has an invalid value (such as a value outside the domain of the function, or a pointer outside the address space of the program, or a null pointer, or a pointer to non-modifiable storage when the corresponding parameter is not const-qualified) or a type (after promotion) not expected by a function with variable number of arguments, the behavior is undefined." To avoid this, add an early return when nf_link_info is NULL to prevent calling qsort with a NULL pointer.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-22 13:31 UTC

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/c2d9f9a7837ab29cc…
https://git.kernel.org/stable/c/2e0f6f33f2aa87493…
https://git.kernel.org/stable/c/c208b02827eb64275…
https://git.kernel.org/stable/c/f04e2ad394e2755d0…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d0fe92fb5e3df6991c640fb9205d880b68603259 , < c2d9f9a7837ab29ccae0c42252f17d436bf0a501 (git) Affected: d0fe92fb5e3df6991c640fb9205d880b68603259 , < 2e0f6f33f2aa87493b365a38a8fd87b8854b7734 (git) Affected: d0fe92fb5e3df6991c640fb9205d880b68603259 , < c208b02827eb642758cef65641995fd3f38c89af (git) Affected: d0fe92fb5e3df6991c640fb9205d880b68603259 , < f04e2ad394e2755d0bb2d858ecb5598718bf00d5 (git)
Linux	Linux	Affected: 6.4 Unaffected: 0 , < 6.4 (semver) Unaffected: 6.6.55 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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        "metrics": [
          {
            "other": {
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                "id": "CVE-2024-49987",
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                  },
                  {
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:31:44.384847Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2024-10-22T13:38:43.446Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "programFiles": [
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            },
            {
              "lessThan": "f04e2ad394e2755d0bb2d858ecb5598718bf00d5",
              "status": "affected",
              "version": "d0fe92fb5e3df6991c640fb9205d880b68603259",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "tools/bpf/bpftool/net.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.55",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10.14",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.3",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpftool: Fix undefined behavior in qsort(NULL, 0, ...)\n\nWhen netfilter has no entry to display, qsort is called with\nqsort(NULL, 0, ...). This results in undefined behavior, as UBSan\nreports:\n\nnet.c:827:2: runtime error: null pointer passed as argument 1, which is declared to never be null\n\nAlthough the C standard does not explicitly state whether calling qsort\nwith a NULL pointer when the size is 0 constitutes undefined behavior,\nSection 7.1.4 of the C standard (Use of library functions) mentions:\n\n\"Each of the following statements applies unless explicitly stated\notherwise in the detailed descriptions that follow: If an argument to a\nfunction has an invalid value (such as a value outside the domain of\nthe function, or a pointer outside the address space of the program, or\na null pointer, or a pointer to non-modifiable storage when the\ncorresponding parameter is not const-qualified) or a type (after\npromotion) not expected by a function with variable number of\narguments, the behavior is undefined.\"\n\nTo avoid this, add an early return when nf_link_info is NULL to prevent\ncalling qsort with a NULL pointer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:43:23.326Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c2d9f9a7837ab29ccae0c42252f17d436bf0a501"
        },
        {
          "url": "https://git.kernel.org/stable/c/2e0f6f33f2aa87493b365a38a8fd87b8854b7734"
        },
        {
          "url": "https://git.kernel.org/stable/c/c208b02827eb642758cef65641995fd3f38c89af"
        },
        {
          "url": "https://git.kernel.org/stable/c/f04e2ad394e2755d0bb2d858ecb5598718bf00d5"
        }
      ],
      "title": "bpftool: Fix undefined behavior in qsort(NULL, 0, ...)",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-49987",
    "datePublished": "2024-10-21T18:02:31.209Z",
    "dateReserved": "2024-10-21T12:17:06.054Z",
    "dateUpdated": "2026-05-11T20:43:23.326Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.

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.