openSUSE Security Update: Security update for ntp ______________________________________________________________________________ Announcement ID: openSUSE-SU-2020:1007-1 Rating: moderate References: #1125401 #1169740 #1171355 #1172651 #1173334 #992038 Cross-References: CVE-2018-8956 CVE-2020-11868 CVE-2020-13817 CVE-2020-15025 Affected Products: openSUSE Leap 15.2 ______________________________________________________________________________ An update that solves four vulnerabilities and has two fixes is now available. Description: This update for ntp fixes the following issues: ntp was updated to 4.2.8p15 - CVE-2020-11868: Fixed an issue which a server mode packet with spoofed source address frequently send to the client ntpd could have caused denial of service (bsc#1169740). - CVE-2018-8956: Fixed an issue which could have allowed remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via spoofed mode 3 and mode 5 packets (bsc#1171355). - CVE-2020-13817: Fixed an issue which an off-path attacker with the ability to query time from victim's ntpd instance could have modified the victim's clock by a limited amount (bsc#1172651). - CVE-2020-15025: Fixed an issue which remote attacker could have caused denial of service by consuming the memory when a CMAC key was used andassociated with a CMAC algorithm in the ntp.keys (bsc#1173334). - Removed an OpenSSL version warning (bsc#992038 and bsc#1125401). This update was imported from the SUSE:SLE-15:Update update project. Patch Instructions: To install this openSUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - openSUSE Leap 15.2: zypper in -t patch openSUSE-2020-1007=1 Package List: - openSUSE Leap 15.2 (i586 x86_64): ntp-4.2.8p15-lp152.3.3.1 ntp-debuginfo-4.2.8p15-lp152.3.3.1 ntp-debugsource-4.2.8p15-lp152.3.3.1 ntp-doc-4.2.8p15-lp152.3.3.1 References: https://www.suse.com/security/cve/CVE-2018-8956.html https://www.suse.com/security/cve/CVE-2020-11868.html https://www.suse.com/security/cve/CVE-2020-13817.html https://www.suse.com/security/cve/CVE-2020-15025.html https://bugzilla.suse.com/1125401 https://bugzilla.suse.com/1169740 https://bugzilla.suse.com/1171355 https://bugzilla.suse.com/1172651 https://bugzilla.suse.com/1173334 https://bugzilla.suse.com/992038