6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.964 High
EPSS
Percentile
99.5%
CentOS Errata and Security Advisory CESA-2009:1039
The Network Time Protocol (NTP) is used to synchronize a computer’s time
with a referenced time source.
A buffer overflow flaw was discovered in the ntpd daemon’s NTPv4
authentication code. If ntpd was configured to use public key cryptography
for NTP packet authentication, a remote attacker could use this flaw to
send a specially-crafted request packet that could crash ntpd.
(CVE-2009-1252)
Note: NTP authentication is not enabled by default.
A buffer overflow flaw was found in the ntpq diagnostic command. A
malicious, remote server could send a specially-crafted reply to an ntpq
request that could crash ntpq. (CVE-2009-0159)
All ntp users are advised to upgrade to this updated package, which
contains backported patches to resolve these issues. After installing the
update, the ntpd daemon will be restarted automatically.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2009-May/078043.html
https://lists.centos.org/pipermail/centos-announce/2009-May/078044.html
Affected packages:
ntp
Upstream details at:
https://access.redhat.com/errata/RHSA-2009:1039
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 5 | i386 | ntp | < 4.2.2p1-9.el5.centos.2 | ntp-4.2.2p1-9.el5.centos.2.i386.rpm |
CentOS | 5 | i386 | ntp | < 4.2.2p1-9.el5.centos.2 | ntp-4.2.2p1-9.el5.centos.2.i386.rpm |
CentOS | 5 | x86_64 | ntp | < 4.2.2p1-9.el5.centos.2 | ntp-4.2.2p1-9.el5.centos.2.x86_64.rpm |
CentOS | 5 | x86_64 | ntp | < 4.2.2p1-9.el5.centos.2 | ntp-4.2.2p1-9.el5.centos.2.x86_64.rpm |