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ubuntucveUbuntu.comUB:CVE-2018-5737
HistoryJan 16, 2019 - 12:00 a.m.

CVE-2018-5737

2019-01-1600:00:00
ubuntu.com
ubuntu.com
13

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.019

Percentile

88.7%

A problem with the implementation of the new serve-stale feature in BIND
9.12 can lead to an assertion failure in rbtdb.c, even when
stale-answer-enable is off. Additionally, problematic interaction between
the serve-stale feature and NSEC aggressive negative caching can in some
cases cause undesirable behavior from named, such as a recursion loop or
excessive logging. Deliberate exploitation of this condition could cause
operational problems depending on the particular manifestation – either
degradation or denial of service. Affects BIND 9.12.0 and 9.12.1.

Notes

Author Note
ratliff 9.12 only

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.019

Percentile

88.7%