Vulnerability-Lookup

OESA-2022-1820 (CVE-2020-27545)

Vulnerability from osv_openeuler – Published: 2022-08-11 11:05 – Updated: 2026-08-06 11:05 – Source website

Summary

libdwarf security update

Details

Libdwarf is a library of functions to provide read/write DWARF debugging records.

Security Fix(es):

A flaw was found in libdwarf. A possible memory leak allows an attacker to input a specially crafted file, leading to a crash. The highest threat from this vulnerability is to system availability.(CVE-2020-27545)

A flaw was found in libdwarf. A possible null pointer dereference vulnerability allows an attacker to input a specially crafted file, leading to a crash. The highest threat from this vulnerability is to system availability.(CVE-2020-28163)

Severity

6.5 (Medium)


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

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-27545	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-28163	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "libdwarf-20210528-1.oe1.aarch64.rpm",
          "libdwarf-debuginfo-20210528-1.oe1.aarch64.rpm",
          "libdwarf-debugsource-20210528-1.oe1.aarch64.rpm",
          "libdwarf-tools-20210528-1.oe1.aarch64.rpm",
          "libdwarf-devel-20210528-1.oe1.aarch64.rpm"
        ],
        "noarch": [
          "libdwarf-help-20210528-1.oe1.noarch.rpm"
        ],
        "src": [
          "libdwarf-20210528-1.oe1.src.rpm"
        ],
        "x86_64": [
          "libdwarf-tools-20210528-1.oe1.x86_64.rpm",
          "libdwarf-debuginfo-20210528-1.oe1.x86_64.rpm",
          "libdwarf-devel-20210528-1.oe1.x86_64.rpm",
          "libdwarf-20210528-1.oe1.x86_64.rpm",
          "libdwarf-debugsource-20210528-1.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "libdwarf",
        "purl": "pkg:rpm/openEuler/libdwarf\u0026distro=openEuler-20.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20210528-1.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Libdwarf is a library of functions to provide read/write DWARF debugging records.\r\n\r\nSecurity Fix(es):\r\n\r\nA flaw was found in libdwarf. A possible memory leak allows an attacker to input a specially crafted file, leading to a crash. The highest threat from this vulnerability is to system availability.(CVE-2020-27545)\n\nA flaw was found in libdwarf. A possible null pointer dereference vulnerability allows an attacker to input a specially crafted file, leading to a crash. The highest threat from this vulnerability is to system availability.(CVE-2020-28163)",
  "id": "OESA-2022-1820",
  "modified": "2026-08-06T11:05:05Z",
  "published": "2022-08-11T11:05:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1820"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27545"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28163"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "libdwarf security update",
  "upstream": [
    "CVE-2020-27545",
    "CVE-2020-28163"
  ]
}

CVE-2020-27545 (GCVE-0-2020-27545)

Vulnerability from cvelistv5 – Published: 2023-04-15 00:00 – Updated: 2025-02-06 16:23

Summary

libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 2025-02-06 16:21 UTC

CWE

n/a
CWE-763 - Release of Invalid Pointer or Reference

Assigner

mitre mitre root

References

5 references

URL	Tags
https://sourceforge.net/projects/libdwarf/
https://github.com/davea42/libdwarf-code/commit/9…
https://www.prevanders.net/dwarfbug.html#DW202010-001
http://web.archive.org/web/20190601140703/https:/…
https://bugzilla.redhat.com/show_bug.cgi?id=2025694

Show details on NVD website

JSON

To clipboard

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        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
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          "vendor": "n/a",
          "versions": [
            {
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    "dateReserved": "2020-10-21T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2020-28163 (GCVE-0-2020-28163)

Vulnerability from cvelistv5 – Published: 2023-04-15 00:00 – Updated: 2025-02-06 16:20

Summary

libdwarf before 20201201 allows a dwarf_print_lines.c NULL pointer dereference and application crash via a DWARF5 line-table header that has an invalid FORM for a pathname.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 2025-02-06 16:19 UTC

CWE

n/a
CWE-476 - NULL Pointer Dereference

Assigner

mitre mitre root

References

4 references

URL	Tags
https://github.com/davea42/libdwarf-code/commit/f…
https://www.prevanders.net/dwarfbug.html#DW202010-003
http://web.archive.org/web/20190601140703/https:/…
https://bugzilla.redhat.com/show_bug.cgi?id=2026000

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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          "dateUpdated": "2024-08-04T16:33:57.682Z",
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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

OESA-2022-1820 (CVE-2020-27545)

CVE-2020-27545 (GCVE-0-2020-27545)

CVE-2020-28163 (GCVE-0-2020-28163)

Tags

Sightings

Nomenclature

Related by attack behaviour