Upstream information

CVE-2018-5737 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.5
Vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High

Note from the SUSE Security Team

This issue only affects bind 9.12, which we did not yet ship.

SUSE Bugzilla entries: 1093448 [RESOLVED / INVALID], 1093449 [RESOLVED / INVALID]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 12 SP2 bind Not affected
SUSE Linux Enterprise Desktop 12 SP3 bind Not affected
SUSE Linux Enterprise SDK 11 SP4 bind Not affected
SUSE Linux Enterprise SDK 12 SP2 bind Not affected
SUSE Linux Enterprise SDK 12 SP3 bind Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS bind Not affected
SUSE Linux Enterprise Server 11 SP4 bind Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS bind Not affected
SUSE Linux Enterprise Server 12 SP2 bind Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS bind Not affected
SUSE Linux Enterprise Server 12 SP3 bind Not affected