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cve[email protected]CVE-2018-5740
HistoryJan 16, 2019 - 8:29 p.m.

CVE-2018-5740

2019-01-1620:29:01
CWE-617
web.nvd.nist.gov
668
cve
2018
5740
bind
deny-answer-aliases
dns rebinding attacks
security
assertion failure
nvd

5 Medium

CVSS2

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

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

7.5 High

AI Score

Confidence

High

0.944 High

EPSS

Percentile

99.2%

“deny-answer-aliases” is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers. However, a defect in this feature makes it easy, when the feature is in use, to experience an assertion failure in name.c. Affects BIND 9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2.

Affected configurations

NVD
Node
iscbindRange9.7.09.8.8
OR
iscbindRange9.9.09.9.13
OR
iscbindRange9.10.09.10.8
OR
iscbindRange9.11.09.11.4
OR
iscbindRange9.12.09.12.2
OR
iscbindRange9.13.09.13.2
Node
redhatenterprise_linux_desktopMatch6.0
OR
redhatenterprise_linux_desktopMatch7.0
OR
redhatenterprise_linux_serverMatch6.0
OR
redhatenterprise_linux_serverMatch7.0
OR
redhatenterprise_linux_server_ausMatch7.6
OR
redhatenterprise_linux_server_eusMatch7.5
OR
redhatenterprise_linux_server_eusMatch7.6
OR
redhatenterprise_linux_workstationMatch6.0
OR
redhatenterprise_linux_workstationMatch7.0
Node
debiandebian_linuxMatch8.0
OR
debiandebian_linuxMatch9.0
Node
netappdata_ontap_edgeMatch-
Node
canonicalubuntu_linuxMatch12.04esm
OR
canonicalubuntu_linuxMatch14.04lts
OR
canonicalubuntu_linuxMatch16.04lts
OR
canonicalubuntu_linuxMatch18.04lts
Node
hphp-uxMatch-
Node
opensuseleapMatch15.0
OR
opensuseleapMatch15.1
OR
opensuseleapMatch42.3

CNA Affected

[
  {
    "product": "BIND 9",
    "vendor": "ISC",
    "versions": [
      {
        "status": "affected",
        "version": "BIND 9  9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2"
      }
    ]
  }
]

5 Medium

CVSS2

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

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

7.5 High

AI Score

Confidence

High

0.944 High

EPSS

Percentile

99.2%