ubuntu-cve-2021-43299
Vulnerability from osv_ubuntu
Published
2022-02-16 21:15
Modified
2026-05-20 14:53
Summary
Details

Stack overflow in PJSUA API when calling pjsua_player_create. An attacker-controlled 'filename' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
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        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
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          {
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          },
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            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-tests",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:22.5.2~dfsg+~cs6.15.60671435-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:22.2.0~dfsg+~cs6.15.60671435-2",
        "1:22.3.0~dfsg+~cs6.15.60671435-1",
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        "1:22.5.2~dfsg+~cs6.15.60671435-1"
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    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          },
          {
            "binary_name": "asterisk-tests",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:22.5.2~dfsg+~cs6.15.60671435-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:22.5.2~dfsg+~cs6.15.60671435-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Stack overflow in PJSUA API when calling pjsua_player_create. An attacker-controlled \u0027filename\u0027 argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.",
  "id": "UBUNTU-CVE-2021-43299",
  "modified": "2026-05-20T14:53:35Z",
  "published": "2022-02-16T21:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-43299"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pjsip/pjproject/security/advisories/GHSA-qcvw-h34v-c7r9"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6422-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-43299"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8122-1"
    }
  ],
  "related": [
    "USN-6422-1",
    "USN-8122-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-43299"
  ]
}



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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.