Veracode Vulnerability DatabaseVERACODE:30563Denial Of Service (DoS)
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
5 Medium
CVSS2
Access Vector
NETWORK
Access 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
Unbound is vulnerable to denial of service. It allows an assertion failure and denial of service in dname_pkt_copy via an invalid packet. A flaw was found in unbound. A reachable assertion in the dname_pkt_copy function can be triggered by sending invalid packets to the server.
References
access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/
access.redhat.com/errata/RHSA-2021:1853
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1954794
lists.debian.org/debian-lts-announce/2021/05/msg00007.html
ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/
security.netapp.com/advisory/ntap-20210507-0007/
Related
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
5 Medium
CVSS2
Access Vector
NETWORK
Access 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