CVE-2020-1983 (GCVE-0-2020-1983)

Vulnerability from cvelistv5 – Published: 2020-04-22 19:30 – Updated: 2024-09-16 19:41
VLAI
Title
libslirp: use after free vulnerability cause a denial of service.
Summary
A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
slirp libslirp Affected: unspecified , ≤ 4.2.0 (custom)
Create a notification for this product.
Date Public
2020-04-20 00:00
Credits
This issue was discovered by Aviv Sasson of Palo Alto Networks.
Show details on NVD website
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      "sourceIdentifier": "psirt@paloaltonetworks.com",
      "vulnStatus": "Modified",
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    },
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Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/4372-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2020/dsa-4665\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T11:56:21+00:00",
      "cve": "CVE-2020-1983",
      "id": "CVE-2020-1983",
      "initial_release_date": "2020-04-02T00:00:00+00:00",
      "product_status:fixed": "2907",
      "product_status:known_affected": "53",
      "product_status:known_not_affected": "41",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "QEMU: slirp: use-after-free in ip_reass() function in ip_input.c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-1983.json",
      "version": "3"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.