Test ID:	1.3.6.1.4.1.25623.1.0.844917
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-4929-1)
Summary:	The remote host is missing an update for the 'bind9' package(s) announced via the USN-4929-1 advisory.
Description:	Summary: The remote host is missing an update for the 'bind9' package(s) announced via the USN-4929-1 advisory. Vulnerability Insight: Greg Kuechle discovered that Bind incorrectly handled certain incremental zone updates. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2021-25214) Siva Kakarla discovered that Bind incorrectly handled certain DNAME records. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2021-25215) It was discovered that Bind incorrectly handled GSSAPI security policy negotiation. A remote attacker could use this issue to cause Bind to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-25216) Affected Software/OS: 'bind9' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 20.04, Ubuntu 20.10, Ubuntu 21.04. Solution: Please install the updated package(s). CVSS Score: 6.8 CVSS Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-25214 https://kb.isc.org/v1/docs/cve-2021-25214 Debian Security Information: DSA-4909 (Google Search) https://www.debian.org/security/2021/dsa-4909 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDSRPCJQ7MZC6CENH5PO3VQOFI7VSWBE/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VEC2XG4Q2ODTN2C4CGXEIXU3EUTBMK7L/ https://lists.debian.org/debian-lts-announce/2021/05/msg00001.html http://www.openwall.com/lists/oss-security/2021/04/29/1 http://www.openwall.com/lists/oss-security/2021/04/29/2 http://www.openwall.com/lists/oss-security/2021/04/29/3 http://www.openwall.com/lists/oss-security/2021/04/29/4 Common Vulnerability Exposure (CVE) ID: CVE-2021-25215 https://kb.isc.org/v1/docs/cve-2021-25215 https://security.netapp.com/advisory/ntap-20210521-0006/ https://www.oracle.com/security-alerts/cpuoct2021.html Common Vulnerability Exposure (CVE) ID: CVE-2021-25216 https://www.zerodayinitiative.com/advisories/ZDI-21-657/
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