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Ubuntu Security Notice USN-5626-2

Ubuntu Security Notice 5626-2 - USN-5626-1 fixed several vulnerabilities in Bind. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Yehuda Afek, Anat Bremler-Barr, and Shani Stajnrod discovered that Bind incorrectly handled large delegations. A remote attacker could possibly use this issue to reduce performance, leading to a denial of service.

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==========================================================================Ubuntu Security Notice USN-5626-2September 21, 2022bind9 vulnerabilities==========================================================================A security issue affects these releases of Ubuntu and its derivatives:- Ubuntu 16.04 ESM- Ubuntu 14.04 ESMSummary:Several security issues were fixed in Bind.Software Description:- bind9: Internet Domain Name ServerDetails:USN-5626-1 fixed several vulnerabilities in Bind. This update providesthe corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.Original advisory details: Yehuda Afek, Anat Bremler-Barr, and Shani Stajnrod discovered that Bind incorrectly handled large delegations. A remote attacker could possibly use this issue to reduce performance, leading to a denial of service. (CVE-2022-2795) It was discovered that Bind incorrectly handled memory when processing ECDSA DNSSEC verification. A remote attacker could use this issue to consume resources, leading to a denial of service. (CVE-2022-38177)Update instructions:The problem can be corrected by updating your system to the followingpackage versions:Ubuntu 16.04 ESM:  bind9                           1:9.10.3.dfsg.P4-8ubuntu1.19+esm3Ubuntu 14.04 ESM:  bind9                           1:9.9.5.dfsg-3ubuntu0.19+esm7In general, a standard system update will make all the necessary changes.References:  https://ubuntu.com/security/notices/USN-5626-2  https://ubuntu.com/security/notices/USN-5626-1  CVE-2022-2795, CVE-2022-38177

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Ubuntu Security Notice USN-5626-1

Ubuntu Security Notice 5626-1 - Yehuda Afek, Anat Bremler-Barr, and Shani Stajnrod discovered that Bind incorrectly handled large delegations. A remote attacker could possibly use this issue to reduce performance, leading to a denial of service. It was discovered that Bind incorrectly handled statistics requests. A remote attacker could possibly use this issue to obtain sensitive memory contents, or cause a denial of service. This issue only affected Ubuntu 22.04 LTS.

Ubuntu Security Notice USN-5626-1

Ubuntu Security Notice 5626-1 - Yehuda Afek, Anat Bremler-Barr, and Shani Stajnrod discovered that Bind incorrectly handled large delegations. A remote attacker could possibly use this issue to reduce performance, leading to a denial of service. It was discovered that Bind incorrectly handled statistics requests. A remote attacker could possibly use this issue to obtain sensitive memory contents, or cause a denial of service. This issue only affected Ubuntu 22.04 LTS.

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