openSUSE Security Update: Security update for ntp
______________________________________________________________________________

Announcement ID: openSUSE-SU-2020:0934-1
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 15.1
______________________________________________________________________________

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 15.1:

zypper in -t patch openSUSE-2020-934=1

Package List:

– openSUSE Leap 15.1 (i586 x86_64):

ntp-4.2.8p15-lp151.2.3.1
ntp-debuginfo-4.2.8p15-lp151.2.3.1
ntp-debugsource-4.2.8p15-lp151.2.3.1
ntp-doc-4.2.8p15-lp151.2.3.1

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

—
To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org
For additional commands, e-mail: opensuse-security-announce+help@opensuse.org