Vulnerability-Lookup

FKIE_CVE-2020-25643

Vulnerability from fkie_nvd - Published: 2020-10-06 14:15 - Updated: 2026-06-17 03:07

Severity

7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Summary

A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause the system to crash or cause a denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References

URL	Tags
secalert@redhat.com	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html	Third Party Advisory
secalert@redhat.com	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html	Mailing List, Third Party Advisory
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=1879981	Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d42ed8b25b64eb63111a2b8582c5afc8bf1105	Mailing List, Patch, Third Party Advisory
secalert@redhat.com	https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html	Mailing List, Third Party Advisory
secalert@redhat.com	https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html	Mailing List, Third Party Advisory
secalert@redhat.com	https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html	Mailing List, Third Party Advisory
secalert@redhat.com	https://security.netapp.com/advisory/ntap-20201103-0002/	Third Party Advisory
secalert@redhat.com	https://www.debian.org/security/2020/dsa-4774	Third Party Advisory
secalert@redhat.com	https://www.starwindsoftware.com/security/sw-20210325-0002/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.redhat.com/show_bug.cgi?id=1879981	Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d42ed8b25b64eb63111a2b8582c5afc8bf1105	Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.netapp.com/advisory/ntap-20201103-0002/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.debian.org/security/2020/dsa-4774	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.starwindsoftware.com/security/sw-20210325-0002/	Third Party Advisory

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	5.9.0
linux	linux_kernel	5.9.0
linux	linux_kernel	5.9.0
linux	linux_kernel	5.9.0
linux	linux_kernel	5.9.0
linux	linux_kernel	5.9.0
redhat	enterprise_linux	7.0
redhat	enterprise_linux	8.0
opensuse	leap	15.1
debian	debian_linux	9.0
debian	debian_linux	10.0
opensuse	leap	15.2
netapp	h410c_firmware	-
netapp	h410c	-
starwindsoftware	starwind_virtual_san	v8
starwindsoftware	starwind_virtual_san	v8
starwindsoftware	starwind_virtual_san	v8
starwindsoftware	starwind_virtual_san	v8
starwindsoftware	starwind_virtual_san	v8
starwindsoftware	starwind_virtual_san	v8

JSON

To clipboard

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    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un fallo de corrupci\u00f3n de la memoria en el kernel de Linux en versiones anteriores a 5.9-rc7, en el m\u00f3dulo HDLC_PPP en la manera en que recibe paquetes malformados por el protocolo PPP.\u0026#xa0;Un usuario remoto podr\u00eda usar este fallo para bloquear el sistema o causar una denegaci\u00f3n de servicio"
    }
  ],
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  "lastModified": "2026-06-17T03:07:02.170",
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}

CVE-2020-25643 (GCVE-0-2020-25643)

Vulnerability from cvelistv5 – Published: 2020-10-06 00:00 – Updated: 2024-08-04 15:40

Summary

Severity

No CVSS data available.

CWE

CWE-20

Assigner

redhat redhat root Scorecard

References

10 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1879981
https://git.kernel.org/pub/scm/linux/kernel/git/t…
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisory
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisory
https://www.debian.org/security/2020/dsa-4774	vendor-advisory
https://lists.debian.org/debian-lts-announce/2020…	mailing-list
https://lists.debian.org/debian-lts-announce/2020…	mailing-list
https://lists.debian.org/debian-lts-announce/2020…	mailing-list
https://security.netapp.com/advisory/ntap-2020110…
https://www.starwindsoftware.com/security/sw-2021…

Impacted products

1 product

Vendor	Product	Version
n/a	kernel	Affected: Linux kernel versions before 5.9-rc7

Show details on NVD website

JSON

To clipboard

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          },
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            "name": "openSUSE-SU-2020:1655",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html"
          },
          {
            "name": "openSUSE-SU-2020:1698",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html"
          },
          {
            "name": "DSA-4774",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2020/dsa-4774"
          },
          {
            "name": "[debian-lts-announce] 20201028 [SECURITY] [DLA 2417-1] linux-4.19 security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html"
          },
          {
            "name": "[debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html"
          },
          {
            "name": "[debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20201103-0002/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.starwindsoftware.com/security/sw-20210325-0002/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kernel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Linux kernel versions before 5.9-rc7"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause the system to crash or cause a denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-11T00:00:00.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1879981"
        },
        {
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d42ed8b25b64eb63111a2b8582c5afc8bf1105"
        },
        {
          "name": "openSUSE-SU-2020:1655",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html"
        },
        {
          "name": "openSUSE-SU-2020:1698",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html"
        },
        {
          "name": "DSA-4774",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.debian.org/security/2020/dsa-4774"
        },
        {
          "name": "[debian-lts-announce] 20201028 [SECURITY] [DLA 2417-1] linux-4.19 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html"
        },
        {
          "name": "[debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html"
        },
        {
          "name": "[debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20201103-0002/"
        },
        {
          "url": "https://www.starwindsoftware.com/security/sw-20210325-0002/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2020-25643",
    "datePublished": "2020-10-06T00:00:00.000Z",
    "dateReserved": "2020-09-16T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:40:36.280Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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

FKIE_CVE-2020-25643

CVE-2020-25643 (GCVE-0-2020-25643)

Tags

Sightings

Nomenclature

Related by attack behaviour