nss vulnerability

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    "data": "In Network Security Services before 3.44, a malformed Netscape Certificate Sequence can cause NSS to crash, resulting in a denial of service. =========================================================================\nUbuntu Security Notice USN-4215-1\nDecember 09, 2019\n\nnss vulnerability\n=========================================================================\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 19.04\n- Ubuntu 18.04 LTS\n- Ubuntu 16.04 LTS\n- Ubuntu 14.04 ESM\n- Ubuntu 12.04 ESM\n\nSummary:\n\nNSS could be made to crash if it received a specially crafted certificate. \nAn attacker could possibly use this issue to cause a denial of service. \n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 19.04:\n  libnss3                         2:3.42-1ubuntu2.4\n\nUbuntu 18.04 LTS:\n  libnss3                         2:3.35-2ubuntu2.6\n\nUbuntu 16.04 LTS:\n  libnss3                         2:3.28.4-0ubuntu0.16.04.9\n\nUbuntu 14.04 ESM:\n  libnss3                         2:3.28.4-0ubuntu0.14.04.5+esm3\n\nUbuntu 12.04 ESM:\n  libnss3                         2:3.28.4-0ubuntu0.12.04.6\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\n====================================================================                   \nRed Hat Security Advisory\n\nSynopsis:          Moderate: nss and nss-softokn security update\nAdvisory ID:       RHSA-2021:0876-01\nProduct:           Red Hat Enterprise Linux\nAdvisory URL:      https://access.redhat.com/errata/RHSA-2021:0876\nIssue date:        2021-03-16\nCVE Names:         CVE-2019-11756 CVE-2019-17006 CVE-2019-17007\n                   CVE-2020-12403\n====================================================================\n1. Summary:\n\nAn update for nss and nss-softokn is now available for Red Hat Enterprise\nLinux 7.6 Extended Update Support. \n\nRed Hat Product Security has rated this update as having a security impact\nof Moderate. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux ComputeNode EUS (v. 7.6) - x86_64\nRed Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) - x86_64\nRed Hat Enterprise Linux Server EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Server Optional EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x\nRed Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x\n\n3. Description:\n\nNetwork Security Services (NSS) is a set of libraries designed to support\nthe cross-platform development of security-enabled client and server\napplications. \n\nSecurity Fix(es):\n\n* nss: Use-after-free in sftk_FreeSession due to improper refcounting\n(CVE-2019-11756)\n\n* nss: Check length of inputs for cryptographic primitives (CVE-2019-17006)\n\n* nss: Handling of Netscape Certificate Sequences in\nCERT_DecodeCertPackage() may crash with a NULL deref leading to DoS\n(CVE-2019-17007)\n\n* nss: CHACHA20-POLY1305 decryption with undersized tag leads to\nout-of-bounds read (CVE-2020-12403)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, applications using NSS (for example, Firefox)\nmust be restarted for this update to take effect. \n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1703979 - CVE-2019-17007 nss: Handling of Netscape Certificate Sequences in CERT_DecodeCertPackage() may crash with a NULL deref leading to DoS\n1774835 - CVE-2019-11756 nss: Use-after-free in sftk_FreeSession due to improper refcounting\n1775916 - CVE-2019-17006 nss: Check length of inputs for cryptographic primitives\n1868931 - CVE-2020-12403 nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read\n\n6. Package List:\n\nRed Hat Enterprise Linux ComputeNode EUS (v. 7.6):\n\nSource:\nnss-3.36.0-9.el7_6.src.rpm\nnss-softokn-3.36.0-7.el7_6.src.rpm\n\nx86_64:\nnss-3.36.0-9.el7_6.i686.rpm\nnss-3.36.0-9.el7_6.x86_64.rpm\nnss-debuginfo-3.36.0-9.el7_6.i686.rpm\nnss-debuginfo-3.36.0-9.el7_6.x86_64.rpm\nnss-softokn-3.36.0-7.el7_6.i686.rpm\nnss-softokn-3.36.0-7.el7_6.x86_64.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.i686.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.x86_64.rpm\nnss-softokn-freebl-3.36.0-7.el7_6.i686.rpm\nnss-softokn-freebl-3.36.0-7.el7_6.x86_64.rpm\nnss-sysinit-3.36.0-9.el7_6.x86_64.rpm\nnss-tools-3.36.0-9.el7_6.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6):\n\nx86_64:\nnss-debuginfo-3.36.0-9.el7_6.i686.rpm\nnss-debuginfo-3.36.0-9.el7_6.x86_64.rpm\nnss-devel-3.36.0-9.el7_6.i686.rpm\nnss-devel-3.36.0-9.el7_6.x86_64.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.i686.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.x86_64.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.i686.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.x86_64.rpm\nnss-softokn-devel-3.36.0-7.el7_6.i686.rpm\nnss-softokn-devel-3.36.0-7.el7_6.x86_64.rpm\nnss-softokn-freebl-devel-3.36.0-7.el7_6.i686.rpm\nnss-softokn-freebl-devel-3.36.0-7.el7_6.x86_64.rpm\n\nRed Hat Enterprise Linux Server EUS (v. 7.6):\n\nSource:\nnss-3.36.0-9.el7_6.src.rpm\nnss-softokn-3.36.0-7.el7_6.src.rpm\n\nppc64:\nnss-3.36.0-9.el7_6.ppc.rpm\nnss-3.36.0-9.el7_6.ppc64.rpm\nnss-debuginfo-3.36.0-9.el7_6.ppc.rpm\nnss-debuginfo-3.36.0-9.el7_6.ppc64.rpm\nnss-devel-3.36.0-9.el7_6.ppc.rpm\nnss-devel-3.36.0-9.el7_6.ppc64.rpm\nnss-softokn-3.36.0-7.el7_6.ppc.rpm\nnss-softokn-3.36.0-7.el7_6.ppc64.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.ppc.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.ppc64.rpm\nnss-softokn-devel-3.36.0-7.el7_6.ppc.rpm\nnss-softokn-devel-3.36.0-7.el7_6.ppc64.rpm\nnss-softokn-freebl-3.36.0-7.el7_6.ppc.rpm\nnss-softokn-freebl-3.36.0-7.el7_6.ppc64.rpm\nnss-softokn-freebl-devel-3.36.0-7.el7_6.ppc.rpm\nnss-softokn-freebl-devel-3.36.0-7.el7_6.ppc64.rpm\nnss-sysinit-3.36.0-9.el7_6.ppc64.rpm\nnss-tools-3.36.0-9.el7_6.ppc64.rpm\n\nppc64le:\nnss-3.36.0-9.el7_6.ppc64le.rpm\nnss-debuginfo-3.36.0-9.el7_6.ppc64le.rpm\nnss-devel-3.36.0-9.el7_6.ppc64le.rpm\nnss-softokn-3.36.0-7.el7_6.ppc64le.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.ppc64le.rpm\nnss-softokn-devel-3.36.0-7.el7_6.ppc64le.rpm\nnss-softokn-freebl-3.36.0-7.el7_6.ppc64le.rpm\nnss-softokn-freebl-devel-3.36.0-7.el7_6.ppc64le.rpm\nnss-sysinit-3.36.0-9.el7_6.ppc64le.rpm\nnss-tools-3.36.0-9.el7_6.ppc64le.rpm\n\ns390x:\nnss-3.36.0-9.el7_6.s390.rpm\nnss-3.36.0-9.el7_6.s390x.rpm\nnss-debuginfo-3.36.0-9.el7_6.s390.rpm\nnss-debuginfo-3.36.0-9.el7_6.s390x.rpm\nnss-devel-3.36.0-9.el7_6.s390.rpm\nnss-devel-3.36.0-9.el7_6.s390x.rpm\nnss-softokn-3.36.0-7.el7_6.s390.rpm\nnss-softokn-3.36.0-7.el7_6.s390x.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.s390.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.s390x.rpm\nnss-softokn-devel-3.36.0-7.el7_6.s390.rpm\nnss-softokn-devel-3.36.0-7.el7_6.s390x.rpm\nnss-softokn-freebl-3.36.0-7.el7_6.s390.rpm\nnss-softokn-freebl-3.36.0-7.el7_6.s390x.rpm\nnss-softokn-freebl-devel-3.36.0-7.el7_6.s390.rpm\nnss-softokn-freebl-devel-3.36.0-7.el7_6.s390x.rpm\nnss-sysinit-3.36.0-9.el7_6.s390x.rpm\nnss-tools-3.36.0-9.el7_6.s390x.rpm\n\nx86_64:\nnss-3.36.0-9.el7_6.i686.rpm\nnss-3.36.0-9.el7_6.x86_64.rpm\nnss-debuginfo-3.36.0-9.el7_6.i686.rpm\nnss-debuginfo-3.36.0-9.el7_6.x86_64.rpm\nnss-devel-3.36.0-9.el7_6.i686.rpm\nnss-devel-3.36.0-9.el7_6.x86_64.rpm\nnss-softokn-3.36.0-7.el7_6.i686.rpm\nnss-softokn-3.36.0-7.el7_6.x86_64.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.i686.rpm\nnss-softokn-debuginfo-3.36.0-7.el7_6.x86_64.rpm\nnss-softokn-devel-3.36.0-7.el7_6.i686.rpm\nnss-softokn-devel-3.36.0-7.el7_6.x86_64.rpm\nnss-softokn-freebl-3.36.0-7.el7_6.i686.rpm\nnss-softokn-freebl-3.36.0-7.el7_6.x86_64.rpm\nnss-softokn-freebl-devel-3.36.0-7.el7_6.i686.rpm\nnss-softokn-freebl-devel-3.36.0-7.el7_6.x86_64.rpm\nnss-sysinit-3.36.0-9.el7_6.x86_64.rpm\nnss-tools-3.36.0-9.el7_6.x86_64.rpm\n\nRed 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Hat Enterprise Linux Server Optional EUS (v. 7.6):\n\nppc64:\nnss-debuginfo-3.36.0-9.el7_6.ppc.rpm\nnss-debuginfo-3.36.0-9.el7_6.ppc64.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.ppc.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.ppc64.rpm\n\nppc64le:\nnss-debuginfo-3.36.0-9.el7_6.ppc64le.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.ppc64le.rpm\n\ns390x:\nnss-debuginfo-3.36.0-9.el7_6.s390.rpm\nnss-debuginfo-3.36.0-9.el7_6.s390x.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.s390.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.s390x.rpm\n\nx86_64:\nnss-debuginfo-3.36.0-9.el7_6.i686.rpm\nnss-debuginfo-3.36.0-9.el7_6.x86_64.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.i686.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.x86_64.rpm\n\nRed Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):\n\naarch64:\nnss-debuginfo-3.36.0-9.el7_6.aarch64.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.aarch64.rpm\n\nppc64le:\nnss-debuginfo-3.36.0-9.el7_6.ppc64le.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.ppc64le.rpm\n\ns390x:\nnss-debuginfo-3.36.0-9.el7_6.s390.rpm\nnss-debuginfo-3.36.0-9.el7_6.s390x.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.s390.rpm\nnss-pkcs11-devel-3.36.0-9.el7_6.s390x.rpm\n\nThese packages are GPG signed by Red Hat for security.  Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2019-11756\nhttps://access.redhat.com/security/cve/CVE-2019-17006\nhttps://access.redhat.com/security/cve/CVE-2019-17007\nhttps://access.redhat.com/security/cve/CVE-2020-12403\nhttps://access.redhat.com/security/updates/classification/#moderate\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. 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