gsd-2021-32686
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.
Aliases
Aliases
CVE-2021-32686


To clipboard 

{
   GSD: {
      alias: "CVE-2021-32686",
      description: "PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.",
      id: "GSD-2021-32686",
      references: [
         "https://www.debian.org/security/2021/dsa-4999",
         "https://advisories.mageia.org/CVE-2021-32686.html",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-32686",
         ],
         details: "PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.",
         id: "GSD-2021-32686",
         modified: "2023-12-13T01:23:09.203021Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "security-advisories@github.com",
            ID: "CVE-2021-32686",
            STATE: "PUBLIC",
            TITLE: "Denial of Service in PJSIP",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "pjproject",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "< 2.11.1",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "pjsip",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.",
               },
            ],
         },
         impact: {
            cvss: {
               attackComplexity: "HIGH",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 5.9,
               baseSeverity: "MEDIUM",
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
               version: "3.1",
            },
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr",
                  refsource: "CONFIRM",
                  url: "https://github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr",
               },
               {
                  name: "https://github.com/pjsip/pjproject/pull/2716",
                  refsource: "MISC",
                  url: "https://github.com/pjsip/pjproject/pull/2716",
               },
               {
                  name: "https://github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd",
                  refsource: "MISC",
                  url: "https://github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd",
               },
               {
                  name: "https://github.com/pjsip/pjproject/releases/tag/2.11.1",
                  refsource: "MISC",
                  url: "https://github.com/pjsip/pjproject/releases/tag/2.11.1",
               },
               {
                  name: "DSA-4999",
                  refsource: "DEBIAN",
                  url: "https://www.debian.org/security/2021/dsa-4999",
               },
               {
                  name: "[debian-lts-announce] 20220328 [SECURITY] [DLA 2962-1] pjproject security update",
                  refsource: "MLIST",
                  url: "https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html",
               },
               {
                  name: "GLSA-202210-37",
                  refsource: "GENTOO",
                  url: "https://security.gentoo.org/glsa/202210-37",
               },
            ],
         },
         source: {
            advisory: "GHSA-cv8x-p47p-99wr",
            discovery: "UNKNOWN",
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "2.11.1",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "security-advisories@github.com",
               ID: "CVE-2021-32686",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-362",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr",
                     refsource: "CONFIRM",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr",
                  },
                  {
                     name: "https://github.com/pjsip/pjproject/pull/2716",
                     refsource: "MISC",
                     tags: [
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "https://github.com/pjsip/pjproject/pull/2716",
                  },
                  {
                     name: "https://github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd",
                     refsource: "MISC",
                     tags: [
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "https://github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd",
                  },
                  {
                     name: "https://github.com/pjsip/pjproject/releases/tag/2.11.1",
                     refsource: "MISC",
                     tags: [
                        "Release Notes",
                        "Third Party Advisory",
                     ],
                     url: "https://github.com/pjsip/pjproject/releases/tag/2.11.1",
                  },
                  {
                     name: "DSA-4999",
                     refsource: "DEBIAN",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://www.debian.org/security/2021/dsa-4999",
                  },
                  {
                     name: "[debian-lts-announce] 20220328 [SECURITY] [DLA 2962-1] pjproject security update",
                     refsource: "MLIST",
                     tags: [
                        "Mailing List",
                        "Third Party Advisory",
                     ],
                     url: "https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html",
                  },
                  {
                     name: "GLSA-202210-37",
                     refsource: "GENTOO",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://security.gentoo.org/glsa/202210-37",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "MEDIUM",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "PARTIAL",
                  baseScore: 4.3,
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  vectorString: "AV:N/AC:M/Au:N/C:N/I:N/A:P",
                  version: "2.0",
               },
               exploitabilityScore: 8.6,
               impactScore: 2.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "MEDIUM",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "HIGH",
                  attackVector: "NETWORK",
                  availabilityImpact: "HIGH",
                  baseScore: 5.9,
                  baseSeverity: "MEDIUM",
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 2.2,
               impactScore: 3.6,
            },
         },
         lastModifiedDate: "2022-11-16T19:02Z",
         publishedDate: "2021-07-23T22:15Z",
      },
   },
}


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