CVE-2020-10772 — HIGH (7.5)

Vulnerability Description

An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification ratio compared to versions of Unbound that shipped before the mentioned erratum. This issue is about the incomplete fix for CVE-2020-12662, and it does not affect upstream versions of Unbound.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Nlnetlabs	Unbound	1.6.6-5
Redhat	Enterprise Linux	7.0

Related Weaknesses (CWE)

CWE-406 CWE-400

References

https://bugzilla.redhat.com/show_bug.cgi?id=1846026Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1846026Issue TrackingThird Party Advisory

FAQ

What is CVE-2020-10772?

CVE-2020-10772 is a vulnerability with a CVSS score of 7.5 (HIGH). An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into...

How severe is CVE-2020-10772?

CVE-2020-10772 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-10772?

Check the references section above for vendor advisories and patch information. Affected products include: Nlnetlabs Unbound, Redhat Enterprise Linux.