Test ID:	1.3.6.1.4.1.25623.1.0.844845
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-4698-2)
Summary:	The remote host is missing an update for the 'dnsmasq' package(s) announced via the USN-4698-2 advisory.
Description:	Summary: The remote host is missing an update for the 'dnsmasq' package(s) announced via the USN-4698-2 advisory. Vulnerability Insight: USN-4698-1 fixed vulnerabilities in Dnsmasq. The updates introduced regressions in certain environments related to issues with multiple queries, and issues with retries. This update fixes the problem. Original advisory details: Moshe Kol and Shlomi Oberman discovered that Dnsmasq incorrectly handled memory when sorting RRsets. A remote attacker could use this issue to cause Dnsmasq to hang, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-25681, CVE-2020-25687) Moshe Kol and Shlomi Oberman discovered that Dnsmasq incorrectly handled extracting certain names. A remote attacker could use this issue to cause Dnsmasq to hang, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-25682, CVE-2020-25683) Moshe Kol and Shlomi Oberman discovered that Dnsmasq incorrectly implemented address/port checks. A remote attacker could use this issue to perform a cache poisoning attack. (CVE-2020-25684) Moshe Kol and Shlomi Oberman discovered that Dnsmasq incorrectly implemented query resource name checks. A remote attacker could use this issue to perform a cache poisoning attack. (CVE-2020-25685) Moshe Kol and Shlomi Oberman discovered that Dnsmasq incorrectly handled multiple query requests for the same resource name. A remote attacker could use this issue to perform a cache poisoning attack. (CVE-2020-25686) It was discovered that Dnsmasq incorrectly handled memory during DHCP response creation. A remote attacker could possibly use this issue to cause Dnsmasq to consume resources, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2019-14834) Affected Software/OS: 'dnsmasq' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 20.04, Ubuntu 20.10. Solution: Please install the updated package(s). CVSS Score: 8.3 CVSS Vector: AV:N/AC:M/Au:N/C:P/I:P/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2019-14834 FEDORA-2020-29b442f83e https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=69bc94779c2f035a9fffdb5327a54c3aeca73ed5 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14834 Common Vulnerability Exposure (CVE) ID: CVE-2020-25681 Debian Security Information: DSA-4844 (Google Search) https://www.debian.org/security/2021/dsa-4844 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/ https://security.gentoo.org/glsa/202101-17 https://bugzilla.redhat.com/show_bug.cgi?id=1881875 https://www.jsof-tech.com/disclosures/dnspooq/ https://lists.debian.org/debian-lts-announce/2021/03/msg00027.html Common Vulnerability Exposure (CVE) ID: CVE-2020-25682 https://bugzilla.redhat.com/show_bug.cgi?id=1882014 Common Vulnerability Exposure (CVE) ID: CVE-2020-25683 https://bugzilla.redhat.com/show_bug.cgi?id=1882018 Common Vulnerability Exposure (CVE) ID: CVE-2020-25684 https://www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61 https://bugzilla.redhat.com/show_bug.cgi?id=1889686 Common Vulnerability Exposure (CVE) ID: CVE-2020-25685 https://bugzilla.redhat.com/show_bug.cgi?id=1889688 Common Vulnerability Exposure (CVE) ID: CVE-2020-25686 https://bugzilla.redhat.com/show_bug.cgi?id=1890125 Common Vulnerability Exposure (CVE) ID: CVE-2020-25687 https://bugzilla.redhat.com/show_bug.cgi?id=1891568
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