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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:174899
[Eng]
Version
4
Class
patch
ALTXid
386921
Language
Russian
Severity
High
Title
ALT -- Обновление bind-9.10.8.P1-alt2
Description
Исправление CVE-2020-8616, CVE-2020-8617
Family
unix
Platform
ALT 8 SP
Product
bind
Reference
VENDOR: report-29052020-c8.1
VENDOR: report-29052020-c8.1
Id:
report-29052020-c8.1
Reference:
https://cve.basealt.ru/report-29052020-c8.1.html
CVE: CVE-2020-8616
CVE: CVE-2020-8616
Id:
CVE-2020-8616
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8616
Comment
: A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to process the referral. This has at least two potential effects: The performance of the recursing server can potentially be degraded by the additional work required to perform these fetches, and The attacker can exploit this behavior to use the recursing server as a reflector in a reflection attack with a high amplification factor.
CVSSv2 Score:
5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
8.6
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE:
400 (Uncontrolled Resource Consumption ('Resource Exhaustion'))
References:
http://www.nxnsattack.com (MISC)
https://kb.isc.org/docs/cve-2020-8616 (CONFIRM)
[oss-security] 20200519 Two vulnerabilities disclosed in BIND (CVE-2020-8616 and CVE-2020-8617) (MLIST)
DSA-4689 (DEBIAN)
https://security.netapp.com/advisory/ntap-20200522-0002/ (CONFIRM)
USN-4365-2 (UBUNTU)
https://www.synology.com/security/advisory/Synology_SA_20_12 (CONFIRM)
USN-4365-1 (UBUNTU)
[debian-lts-announce] 20200530 [SECURITY] [DLA 2227-1] bind9 security update (MLIST)
openSUSE-SU-2020:1699 (SUSE)
openSUSE-SU-2020:1701 (SUSE)
FEDORA-2020-2d89cbcfd9 ()
FEDORA-2020-f9dcd4e9d5 ()
CVE: CVE-2020-8617
CVE: CVE-2020-8617
Id:
CVE-2020-8617
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8617
Comment
: Using a specially-crafted message, an attacker may potentially cause a BIND server to reach an inconsistent state if the attacker knows (or successfully guesses) the name of a TSIG key used by the server. Since BIND, by default, configures a local session key even on servers whose configuration does not otherwise make use of it, almost all current BIND servers are vulnerable. In releases of BIND dating from March 2018 and after, an assertion check in tsig.c detects this inconsistent state and deliberately exits. Prior to the introduction of the check the server would continue operating in an inconsistent state, with potentially harmful results.
CVSSv2 Score:
4.3
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.9
Attack vector:
NETWORK
Attack complexity:
HIGH
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
617 (Reachable Assertion)
References:
https://kb.isc.org/docs/cve-2020-8617 (CONFIRM)
[oss-security] 20200519 Two vulnerabilities disclosed in BIND (CVE-2020-8616 and CVE-2020-8617) (MLIST)
DSA-4689 (DEBIAN)
https://security.netapp.com/advisory/ntap-20200522-0002/ (CONFIRM)
http://packetstormsecurity.com/files/157836/BIND-TSIG-Denial-Of-Service.html (MISC)
USN-4365-2 (UBUNTU)
USN-4365-1 (UBUNTU)
[debian-lts-announce] 20200530 [SECURITY] [DLA 2227-1] bind9 security update (MLIST)
openSUSE-SU-2020:1699 (SUSE)
openSUSE-SU-2020:1701 (SUSE)
FEDORA-2020-2d89cbcfd9 ()
FEDORA-2020-f9dcd4e9d5 ()
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