Upstream information

CVE-2018-20102 at MITRE

Description

An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on the value of accepted_payload_size.

SUSE information

Overall state of this security issue: Resolved

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:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 6.5
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Access Vector Network Network
Access Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High Low
Integrity Impact None None
Availability Impact None Low
CVSSv3 Version 3 3
SUSE Bugzilla entry: 1119368 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise High Availability 15 SP1
  • haproxy >= 1.8.17~git0.e89d25b2-6.23
SUSE Linux Enterprise High Availability 15
  • haproxy >= 1.8.15~git0.6b6a350a-3.6.2
Patchnames:
SUSE-SLE-Product-HA-15-2019-61
openSUSE Leap 15.0
  • haproxy >= 1.8.15~git0.6b6a350a-lp150.2.6.1
  • haproxy-debuginfo >= 1.8.15~git0.6b6a350a-lp150.2.6.1
  • haproxy-debugsource >= 1.8.15~git0.6b6a350a-lp150.2.6.1
Patchnames:
openSUSE-2019-44


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Please note that this evaluation state might be work in progress, incomplete or outdated.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
HPE Helion OpenStack 8 haproxy Not affected
SUSE Linux Enterprise High Availability Extension 12 haproxy Not affected
SUSE Linux Enterprise High Availability Extension 12 SP2 haproxy Not affected
SUSE Linux Enterprise High Availability Extension 12 SP3 haproxy Not affected
SUSE Linux Enterprise High Availability Extension 12 SP4 haproxy Not affected
SUSE Linux Enterprise High Availability Extension 15 haproxy Released
SUSE Linux Enterprise High Availability Extension 15 SP1 haproxy Already fixed
SUSE Linux Enterprise Server for SAP Applications 12 haproxy Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 haproxy Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 haproxy Not affected
SUSE OpenStack Cloud 7 haproxy Not affected
SUSE OpenStack Cloud 8 haproxy Not affected
SUSE OpenStack Cloud Crowbar 8 haproxy Not affected