7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
57.6%
Issue Overview:
A flaw was found in the way bind implemented tunable which limited simultaneous TCP client connections. A remote attacker could use this flaw to exhaust the pool of file descriptors available to named, potentially affecting network connections and the management of files such as log files or zone journal files. In cases where the named process is not limited by OS-enforced per-process limits, this could additionally potentially lead to exhaustion of all available free file descriptors on that system. (CVE-2018-5743)
Affected Packages:
bind
Issue Correction:
Run yum update bind to update your system.
New Packages:
i686:
bind-9.8.2-0.68.rc1.60.amzn1.i686
bind-utils-9.8.2-0.68.rc1.60.amzn1.i686
bind-libs-9.8.2-0.68.rc1.60.amzn1.i686
bind-chroot-9.8.2-0.68.rc1.60.amzn1.i686
bind-devel-9.8.2-0.68.rc1.60.amzn1.i686
bind-sdb-9.8.2-0.68.rc1.60.amzn1.i686
bind-debuginfo-9.8.2-0.68.rc1.60.amzn1.i686
src:
bind-9.8.2-0.68.rc1.60.amzn1.src
x86_64:
bind-chroot-9.8.2-0.68.rc1.60.amzn1.x86_64
bind-debuginfo-9.8.2-0.68.rc1.60.amzn1.x86_64
bind-sdb-9.8.2-0.68.rc1.60.amzn1.x86_64
bind-9.8.2-0.68.rc1.60.amzn1.x86_64
bind-devel-9.8.2-0.68.rc1.60.amzn1.x86_64
bind-utils-9.8.2-0.68.rc1.60.amzn1.x86_64
bind-libs-9.8.2-0.68.rc1.60.amzn1.x86_64
Red Hat: CVE-2018-5743
Mitre: CVE-2018-5743
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
57.6%