Vulnerability-Lookup

ubuntu-cve-2021-31317

Vulnerability from osv_ubuntu

Published

2021-05-18 20:15

Modified

2026-04-22 07:40

Summary

Details

Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Type Confusion in the VDasher constructor of their custom fork of the rlottie library. A remote attacker might be able to access Telegram's heap memory out-of-bounds on a victim device via a malicious animated sticker.

Severity

5.5 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-31317	REPORT
	https://www.shielder.it/advisories/telegram-rlott…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2021-31317	REPORT
	https://ubuntu.com/security/notices/USN-7198-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "librlottie0-1",
            "binary_version": "0~git20200305.a717479+dfsg-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "rlottie",
        "purl": "pkg:deb/ubuntu/rlottie@0~git20200305.a717479+dfsg-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0~git20200305.a717479+dfsg-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0~git20190721.24346d0+dfsg-2",
        "0~git20190721.24346d0+dfsg-2build1",
        "0~git20200305.a717479+dfsg-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Telegram Android \u003c7.1.0 (2090), Telegram iOS \u003c7.1, and Telegram macOS \u003c7.1 are affected by a Type Confusion in the VDasher constructor of their custom fork of the rlottie library. A remote attacker might be able to access Telegram\u0027s heap memory out-of-bounds on a victim device via a malicious animated sticker.",
  "id": "UBUNTU-CVE-2021-31317",
  "modified": "2026-04-22T07:40:02Z",
  "published": "2021-05-18T20:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-31317"
    },
    {
      "type": "REPORT",
      "url": "https://www.shielder.it/advisories/telegram-rlottie-vdasher-vdasher-type-confusion/"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-31317"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7198-1"
    }
  ],
  "related": [
    "USN-7198-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-31317"
  ]
}

CVE-2021-31317 (GCVE-0-2021-31317)

Vulnerability from cvelistv5 – Published: 2021-05-18 19:44 – Updated: 2024-08-03 22:55

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

2 references

URL	Tags
https://www.shielder.it/blog/2021/02/hunting-for-…	x_refsource_MISC
https://www.shielder.it/advisories/telegram-rlott…	x_refsource_MISC

Date Public

2021-02-16 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:55:53.469Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.shielder.it/blog/2021/02/hunting-for-bugs-in-telegrams-animated-stickers-remote-attack-surface/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.shielder.it/advisories/telegram-rlottie-vdasher-vdasher-type-confusion/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2021-02-16T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Telegram Android \u003c7.1.0 (2090), Telegram iOS \u003c7.1, and Telegram macOS \u003c7.1 are affected by a Type Confusion in the VDasher constructor of their custom fork of the rlottie library. A remote attacker might be able to access Telegram\u0027s heap memory out-of-bounds on a victim device via a malicious animated sticker."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-18T19:44:46.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.shielder.it/blog/2021/02/hunting-for-bugs-in-telegrams-animated-stickers-remote-attack-surface/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.shielder.it/advisories/telegram-rlottie-vdasher-vdasher-type-confusion/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-31317",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Telegram Android \u003c7.1.0 (2090), Telegram iOS \u003c7.1, and Telegram macOS \u003c7.1 are affected by a Type Confusion in the VDasher constructor of their custom fork of the rlottie library. A remote attacker might be able to access Telegram\u0027s heap memory out-of-bounds on a victim device via a malicious animated sticker."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.shielder.it/blog/2021/02/hunting-for-bugs-in-telegrams-animated-stickers-remote-attack-surface/",
              "refsource": "MISC",
              "url": "https://www.shielder.it/blog/2021/02/hunting-for-bugs-in-telegrams-animated-stickers-remote-attack-surface/"
            },
            {
              "name": "https://www.shielder.it/advisories/telegram-rlottie-vdasher-vdasher-type-confusion/",
              "refsource": "MISC",
              "url": "https://www.shielder.it/advisories/telegram-rlottie-vdasher-vdasher-type-confusion/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-31317",
    "datePublished": "2021-05-18T19:44:46.000Z",
    "dateReserved": "2021-04-15T00:00:00.000Z",
    "dateUpdated": "2024-08-03T22:55:53.469Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

usn-7198-1

Vulnerability from osv_ubuntu

Published

2025-01-10 01:11

Modified

2026-04-22 07:37

Summary

rlottie vulnerabilities

Details

Paolo Giai discovered a series of stack-based overflow vulnerabilities in the blit and gray_render_cubic functions of a custom fork of the rlottie library. An attacker could possibly use this issue to leak sensitive information. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2021-31315, CVE-2021-31321)

Paolo Giai discovered a series of type confusion vulnerabilities in the VDasher constructor and the LOTCompLayerItem::LOTCompLayerItem function of a custom fork of the rlottie library. An attacker could possibly use this issue to leak sensitive information. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-31317, CVE-2021-31318)

Paolo Giai discovered an integer overflow vulnerability in the LOTGradient::populate function of a custom fork of the rlottie library. An attacker could possibly use this issue to leak sensitive information. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-31319)

Paolo Giai discovered a series of heap buffer overflow vulnerabilities in the VGradientCache::generateGradientColorTable and LOTGradient::populate functions of a custom fork of the rlottie library. An attacker could possibly use this issue to achieve remote code execution. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-31320, CVE-2021-31322)

References

URL

Type

	https://ubuntu.com/security/notices/USN-7198-1	ADVISORY
	https://ubuntu.com/security/CVE-2021-31315	REPORT
	https://ubuntu.com/security/CVE-2021-31317	REPORT
	https://ubuntu.com/security/CVE-2021-31318	REPORT
	https://ubuntu.com/security/CVE-2021-31319	REPORT
	https://ubuntu.com/security/CVE-2021-31320	REPORT
	https://ubuntu.com/security/CVE-2021-31321	REPORT
	https://ubuntu.com/security/CVE-2021-31322	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-31315",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-31317",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-31318",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-31319",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-31320",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-31321",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-31322",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "librlottie0-1",
            "binary_version": "0~git20200305.a717479+dfsg-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "rlottie",
        "purl": "pkg:deb/ubuntu/rlottie@0~git20200305.a717479+dfsg-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0~git20200305.a717479+dfsg-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0~git20190721.24346d0+dfsg-2",
        "0~git20190721.24346d0+dfsg-2build1",
        "0~git20200305.a717479+dfsg-1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-31315",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-31321",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "librlottie0-1",
            "binary_version": "0.1+dfsg-2ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "rlottie",
        "purl": "pkg:deb/ubuntu/rlottie@0.1+dfsg-2ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1+dfsg-2ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1+dfsg-2"
      ]
    }
  ],
  "aliases": [],
  "details": "\nPaolo Giai discovered a series of stack-based overflow vulnerabilities in\nthe blit and gray_render_cubic functions of a custom fork of the rlottie\nlibrary. An attacker could possibly use this issue to leak sensitive \ninformation. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04\nLTS. (CVE-2021-31315, CVE-2021-31321)\n\nPaolo Giai discovered a series of type confusion vulnerabilities in the\nVDasher constructor and the LOTCompLayerItem::LOTCompLayerItem function\nof a custom fork of the rlottie library. An attacker could possibly use\nthis issue to leak sensitive information. This issue only affected Ubuntu\n20.04 LTS. (CVE-2021-31317, CVE-2021-31318)\n\nPaolo Giai discovered an integer overflow vulnerability in the \nLOTGradient::populate function of a custom fork of the rlottie library.\nAn attacker could possibly use this issue to leak sensitive information.\nThis issue only affected Ubuntu 20.04 LTS. (CVE-2021-31319)\n\nPaolo Giai discovered a series of heap buffer overflow vulnerabilities\nin the VGradientCache::generateGradientColorTable and\nLOTGradient::populate functions of a custom fork of the rlottie library.\nAn attacker could possibly use this issue to achieve remote code execution.\nThis issue only affected Ubuntu 20.04 LTS. (CVE-2021-31320, CVE-2021-31322)\n",
  "id": "USN-7198-1",
  "modified": "2026-04-22T07:37:15Z",
  "published": "2025-01-10T01:11:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7198-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-31315"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-31317"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-31318"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-31319"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-31320"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-31321"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-31322"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "rlottie vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-31315",
    "UBUNTU-CVE-2021-31317",
    "UBUNTU-CVE-2021-31318",
    "UBUNTU-CVE-2021-31319",
    "UBUNTU-CVE-2021-31320",
    "UBUNTU-CVE-2021-31321",
    "UBUNTU-CVE-2021-31322"
  ]
}

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.

Action not permitted

ubuntu-cve-2021-31317

Vulnerability from osv_ubuntu

CVE-2021-31317 (GCVE-0-2021-31317)

usn-7198-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature