CVE-2021-3939 (GCVE-0-2021-3939)
Vulnerability from cvelistv5
Published
2021-11-17 03:15
Modified
2024-09-16 18:02
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-590 - Free of Memory not on the Heap
Summary
Ubuntu-specific modifications to accountsservice (in patch file debian/patches/0010-set-language.patch) caused the fallback_locale variable, pointing to static storage, to be freed, in the user_change_language_authorized_cb function. This is reachable via the SetLanguage dbus function. This is fixed in versions 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1.
References
Impacted products
Vendor Product Version
Ubuntu accountsservice Version: 0.6.55-0ubuntu12~20.04   < 0.6.55-0ubuntu12~20.04.5
Version: 0.6.55-0ubuntu13   < 0.6.55-0ubuntu13.3
Version: 0.6.55-0ubuntu14   < 0.6.55-0ubuntu14.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:09:09.693Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://ubuntu.com/security/notices/USN-5149-1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/172848/Ubuntu-accountsservice-Double-Free-Memory-Corruption.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "accountsservice",
          "vendor": "Ubuntu",
          "versions": [
            {
              "lessThan": "0.6.55-0ubuntu12~20.04.5",
              "status": "affected",
              "version": "0.6.55-0ubuntu12~20.04",
              "versionType": "custom"
            },
            {
              "lessThan": "0.6.55-0ubuntu13.3",
              "status": "affected",
              "version": "0.6.55-0ubuntu13",
              "versionType": "custom"
            },
            {
              "lessThan": "0.6.55-0ubuntu14.1",
              "status": "affected",
              "version": "0.6.55-0ubuntu14",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Kevin Backhouse"
        }
      ],
      "datePublic": "2021-11-16T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "Ubuntu-specific modifications to accountsservice (in patch file debian/patches/0010-set-language.patch) caused the fallback_locale variable, pointing to static storage, to be freed, in the user_change_language_authorized_cb function. This is reachable via the SetLanguage dbus function. This is fixed in versions 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-590",
              "description": "CWE-590 Free of Memory not on the Heap",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-12T00:00:00",
        "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "shortName": "canonical"
      },
      "references": [
        {
          "url": "https://ubuntu.com/security/notices/USN-5149-1"
        },
        {
          "url": "https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149"
        },
        {
          "url": "http://packetstormsecurity.com/files/172848/Ubuntu-accountsservice-Double-Free-Memory-Corruption.html"
        }
      ],
      "source": {
        "advisory": "USN-5149-1",
        "defect": [
          "https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Free of static data in accountsservice",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
    "assignerShortName": "canonical",
    "cveId": "CVE-2021-3939",
    "datePublished": "2021-11-17T03:15:10.949510Z",
    "dateReserved": "2021-11-09T00:00:00",
    "dateUpdated": "2024-09-16T18:02:58.362Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-3939\",\"sourceIdentifier\":\"security@ubuntu.com\",\"published\":\"2021-11-17T04:15:06.977\",\"lastModified\":\"2024-11-21T06:22:49.100\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Ubuntu-specific modifications to accountsservice (in patch file debian/patches/0010-set-language.patch) caused the fallback_locale variable, pointing to static storage, to be freed, in the user_change_language_authorized_cb function. This is reachable via the SetLanguage dbus function. This is fixed in versions 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1.\"},{\"lang\":\"es\",\"value\":\"Unas modificaciones espec\u00edficas de Ubuntu a accountsservice (en el archivo de parche debian/patches/0010-set-language.patch) causaron la liberaci\u00f3n de la variable fallback_locale, que apunta al almacenamiento est\u00e1tico, en la funci\u00f3n user_change_language_authorized_cb. Esto es accesible por medio de la funci\u00f3n dbus SetLanguage. Esto es corregido en las versiones 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@ubuntu.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.1,\"impactScore\":6.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":7.2,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":3.9,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security@ubuntu.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-590\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-763\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"0.6.55-0ubuntu12\\\\~20.04\",\"versionEndExcluding\":\"0.6.55-0ubuntu12\\\\~20.05\",\"matchCriteriaId\":\"AB08CB97-D747-4D11-9824-4AD73BAA28F6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"0.6.55-0ubuntu13\",\"versionEndExcluding\":\"0.6.55-0ubuntu13.3\",\"matchCriteriaId\":\"EDFB086F-2F2C-48ED-B020-96FDA6D581EB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"0.6.55-0ubuntu14\",\"versionEndExcluding\":\"0.6.55-0ubuntu14.1\",\"matchCriteriaId\":\"F1A2D965-5BF5-4B21-899A-1AD29AE1F669\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"902B8056-9E37-443B-8905-8AA93E2447FB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8EF1C1CC-3FAE-4DE3-BC41-E5B14D5721F4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AAE4D2D0-CEEB-416F-8BC5-A7987DF56190\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/172848/Ubuntu-accountsservice-Double-Free-Memory-Corruption.html\",\"source\":\"security@ubuntu.com\"},{\"url\":\"https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Broken Link\"]},{\"url\":\"https://ubuntu.com/security/notices/USN-5149-1\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://packetstormsecurity.com/files/172848/Ubuntu-accountsservice-Double-Free-Memory-Corruption.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Broken Link\"]},{\"url\":\"https://ubuntu.com/security/notices/USN-5149-1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.