Vulnerability-Lookup

UBUNTU-CVE-2022-39046 (CVE-2022-39046)

Vulnerability from osv_ubuntu – Published: 2022-08-31 06:15 – Updated: 2025-07-16 05:01 – Source website

Withdrawn 2025-07-18

Details

An issue was discovered in the GNU C Library (glibc) 2.36. When the syslog function is passed a crafted input string larger than 1024 bytes, it reads uninitialized memory from the heap and prints it to the target log file, potentially revealing a portion of the contents of the heap.

Severity

5.3 (Medium)


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

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2022-39046	REPORT
	https://sourceware.org/pipermail/libc-alpha/2022-…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2022-39046	REPORT

JSON

To clipboard

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      },
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        "2.34-0ubuntu3",
        "2.35-0ubuntu1",
        "2.35-0ubuntu3"
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    }
  ],
  "aliases": [],
  "details": "An issue was discovered in the GNU C Library (glibc) 2.36. When the syslog function is passed a crafted input string larger than 1024 bytes, it reads uninitialized memory from the heap and prints it to the target log file, potentially revealing a portion of the contents of the heap.",
  "id": "UBUNTU-CVE-2022-39046",
  "modified": "2025-07-16T05:01:35Z",
  "published": "2022-08-31T06:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-39046"
    },
    {
      "type": "REPORT",
      "url": "https://sourceware.org/pipermail/libc-alpha/2022-August/141707.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-39046"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-39046"
  ],
  "withdrawn": "2025-07-18T16:49:32Z"
}

CVE-2022-39046 (GCVE-0-2022-39046)

Vulnerability from cvelistv5 – Published: 2022-08-31 00:00 – Updated: 2024-08-03 11:10

Summary

Severity

7.5 (High)


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

CWE

Assigner

mitre mitre root

References

7 references

URL	Tags
https://sourceware.org/bugzilla/show_bug.cgi?id=29536
https://security.netapp.com/advisory/ntap-2022110…
https://security.gentoo.org/glsa/202310-03	vendor-advisory
http://www.openwall.com/lists/oss-security/2024/01/30/8	mailing-list
http://www.openwall.com/lists/oss-security/2024/01/30/6	mailing-list
http://packetstormsecurity.com/files/176932/glibc…
http://seclists.org/fulldisclosure/2024/Feb/3	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

UBUNTU-CVE-2022-39046 (CVE-2022-39046)

CVE-2022-39046 (GCVE-0-2022-39046)

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Related by attack behaviour