Vulnerability-Lookup

SUSE-SU-2023:1640-1

Vulnerability from csaf_suse - Published: 2023-03-28 12:34 - Updated: 2023-03-28 12:34

Summary

Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP5)

Severity

Important

Notes

Title of the patch: Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP5)

Description of the patch: This update for the Linux Kernel 4.12.14-122_147 fixes several issues. The following security issues were fixed: - CVE-2023-26545: Fixed double free in net/mpls/af_mpls.c upon an allocation failure (bsc#1208909). - CVE-2023-0266: Fixed a use-after-free vulnerability inside the ALSA PCM package. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 was missing locks that could have been used in a use-after-free that could have resulted in a priviledge escalation to gain ring0 access from the system user (bsc#1207190).

Patchnames: SUSE-2023-1640,SUSE-SLE-Live-Patching-12-SP5-2023-1640

CVE-2023-0266

7.8 (High)


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

Affected products

Recommended 3 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_147-default-2-2.3.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_147-default-2-2.3.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_147-default-2-2.3.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2023-26545

7 (High)


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

Affected products

Recommended 3 products, the same list as for CVE-2023-0266

Threats

Impact important

References

16 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-updates/2023…	self
https://bugzilla.suse.com/1207190	self
https://bugzilla.suse.com/1208909	self
https://www.suse.com/security/cve/CVE-2023-0266/	self
https://www.suse.com/security/cve/CVE-2023-26545/	self
https://www.suse.com/security/cve/CVE-2023-0266	external
https://bugzilla.suse.com/1207134	external
https://bugzilla.suse.com/1207190	external
https://bugzilla.suse.com/1214128	external
https://www.suse.com/security/cve/CVE-2023-26545	external
https://bugzilla.suse.com/1208700	external
https://bugzilla.suse.com/1208909	external
https://bugzilla.suse.com/1210423	external

JSON

To clipboard

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}

CVE-2023-0266 (GCVE-0-2023-0266)

Vulnerability from cvelistv5 – Published: 2023-01-30 13:09 – Updated: 2025-10-21 23:15

Title

Use after free in SNDRV_CTL_IOCTL_ELEM in Linux Kernel

Summary

A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e

Severity

7.9 (High)


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

SSVC

Exploitation: active Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-29 15:07 UTC

CWE

CWE-416 - Use After Free

Assigner

Google Google root

References

5 references

URL	Tags
https://github.com/torvalds/linux/commit/becf9e5d…
https://git.kernel.org/pub/scm/linux/kernel/git/s…
https://github.com/torvalds/linux/commit/56b88b50…
https://lists.debian.org/debian-lts-announce/2023…
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version
Linux	Linux Kernel	Affected: 4.14 , < 56b88b50565cd8b946a2d00b0c83927b7ebb055e (git)

Date Public

2023-01-13 00:00

Show details on NVD website

JSON

To clipboard

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          "value": "A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel.\u00a0SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit\u00a056b88b50565cd8b946a2d00b0c83927b7ebb055e"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-233",
          "descriptions": [
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              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
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        }
      ],
      "metrics": [
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            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.9,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416 Use After Free",
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            }
          ]
        }
      ],
      "providerMetadata": {
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        "orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "shortName": "Google"
      },
      "references": [
        {
          "url": "https://github.com/torvalds/linux/commit/becf9e5d553c2389d857a3c178ce80fdb34a02e1"
        },
        {
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lock-inside-snd_ctl_elem_read-to-prevent-uaf.patch?id=72783cf35e6c55bca84c4bb7b776c58152856fd4"
        },
        {
          "url": "https://github.com/torvalds/linux/commit/56b88b50565cd8b946a2d00b0c83927b7ebb055e"
        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Use after free in SNDRV_CTL_IOCTL_ELEM in Linux Kernel",
      "x_generator": {
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    }
  },
  "cveMetadata": {
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    "cveId": "CVE-2023-0266",
    "datePublished": "2023-01-30T13:09:32.141Z",
    "dateReserved": "2023-01-13T07:58:13.390Z",
    "dateUpdated": "2025-10-21T23:15:27.844Z",
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CVE-2023-26545 (GCVE-0-2023-26545)

Vulnerability from cvelistv5 – Published: 2023-02-25 00:00 – Updated: 2025-03-20 20:45

Summary

In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure (for registering the sysctl table under a new location) during the renaming of a device.

Severity

4.7 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-06 15:57 UTC

CWE

n/a
CWE-415 - Double Free

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/torvalds/linux/commit/fda6c89f…
https://git.kernel.org/cgit/linux/kernel/git/torv…
https://cdn.kernel.org/pub/linux/kernel/v6.x/Chan…
https://security.netapp.com/advisory/ntap-2023031…
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Show details on NVD website

JSON

To clipboard

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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.

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.

Action not permitted

SUSE-SU-2023:1640-1

CVE-2023-0266 (GCVE-0-2023-0266)

CVE-2023-26545 (GCVE-0-2023-26545)

Tags

Sightings

Nomenclature

Related by attack behaviour