{
  "threat_severity" : "Important",
  "public_date" : "2023-07-14T00:00:00Z",
  "bugzilla" : {
    "description" : "cjose: AES GCM decryption uses the Tag length from the actual Authentication Tag provided in the JWE",
    "id" : "2223295",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2223295"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-327",
  "details" : [ "OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorrectly uses the Tag length from the actual Authentication Tag provided in the JWE. The spec  says that a fixed length of 16 octets must be applied. Therefore this bug allows an attacker to provide a truncated Authentication Tag and to modify the JWE accordingly. Users should upgrade to a version >= 0.6.2.2. Users unable to upgrade should avoid using AES GCM encryption and replace it with another encryption algorithm (e.g. AES CBC).", "A vulnerability was found in cjose. The cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorrectly uses the tag length from the actual Authentication Tag provided in the  JSON Web Encryption (JWE). A fixed length of 16 octets must be applied. This flaw allows an attacker to provide a truncated Authentication Tag and modify the JWE." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2023-08-01T00:00:00Z",
    "advisory" : "RHSA-2023:4418",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "mod_auth_openidc:2.3-8080020230720161126.63b34585"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions",
    "release_date" : "2023-08-02T00:00:00Z",
    "advisory" : "RHSA-2023:4429",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.1",
    "package" : "mod_auth_openidc:2.3-8010020230726170509.c27ad7f8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Advanced Update Support",
    "release_date" : "2023-08-01T00:00:00Z",
    "advisory" : "RHSA-2023:4410",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.2",
    "package" : "mod_auth_openidc:2.3-8020020230720143951.4cda2c84"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Telecommunications Update Service",
    "release_date" : "2023-08-01T00:00:00Z",
    "advisory" : "RHSA-2023:4410",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.2",
    "package" : "mod_auth_openidc:2.3-8020020230720143951.4cda2c84"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions",
    "release_date" : "2023-08-01T00:00:00Z",
    "advisory" : "RHSA-2023:4410",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.2",
    "package" : "mod_auth_openidc:2.3-8020020230720143951.4cda2c84"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
    "release_date" : "2023-08-01T00:00:00Z",
    "advisory" : "RHSA-2023:4409",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.4",
    "package" : "mod_auth_openidc:2.3-8040020230720145640.522a0ee4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Telecommunications Update Service",
    "release_date" : "2023-08-01T00:00:00Z",
    "advisory" : "RHSA-2023:4409",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.4",
    "package" : "mod_auth_openidc:2.3-8040020230720145640.522a0ee4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions",
    "release_date" : "2023-08-01T00:00:00Z",
    "advisory" : "RHSA-2023:4409",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.4",
    "package" : "mod_auth_openidc:2.3-8040020230720145640.522a0ee4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Extended Update Support",
    "release_date" : "2023-08-01T00:00:00Z",
    "advisory" : "RHSA-2023:4408",
    "cpe" : "cpe:/a:redhat:rhel_eus:8.6",
    "package" : "mod_auth_openidc:2.3-8060020230720154259.ad008a3a"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-08-01T00:00:00Z",
    "advisory" : "RHSA-2023:4411",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "cjose-0:0.6.1-13.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Extended Update Support",
    "release_date" : "2023-08-01T00:00:00Z",
    "advisory" : "RHSA-2023:4417",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.0",
    "package" : "cjose-0:0.6.1-13.el9_0"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-37464\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-37464\nhttps://github.com/OpenIDC/cjose/security/advisories/GHSA-3rhg-3gf2-6xgj" ],
  "name" : "CVE-2023-37464",
  "mitigation" : {
    "value" : "Users unable to upgrade should avoid using AES GCM encryption and replace it with another encryption algorithm, such as AES CBC.",
    "lang" : "en:us"
  },
  "csaw" : false
}