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01 Record

CVE-2020-8619

A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer

MediumPUBLISHEDCNA: isc
CNA base score4.9 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

02 Description

A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.14% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 82.0% of scored records. A rank, not a probability.
NVD base score
4.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-09-01.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-06-17 21:20Z6 YR AGO
Last updated
2024-09-17 03:28Z2 YR AGO
Reserved
2020-02-05
Assigning CNA
isc
Record state
PUBLISHED
Severity
Medium (CVSS 4.9)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-404Improper Resource Shutdown or ReleaseClass
  • CWE-617Reachable AssertionBase
Data version
5.1
Document digest
7a07e47673874edb2f0cd80a5380b44226b78fd2c38c322ec9b025237a93e389

05 Affected products

VendorProductVersionsPlatforms
ISCBIND99.11.14 through versions before 9.11.20, 9.16.0 through versions before 9.16.4, 9.11.14-S1 through versions before 9.11.20-S1, 9.14.9 through versions 9.14.12—

06 References

07 Remediation

Upgrade to the patched release most closely related to your current version of BIND: BIND 9.11.20 BIND 9.16.4 BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers. BIND 9.11.20-S1

08 Fixed in

Arch Linux

  • bind
    Fixed in 9.16.4-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

  • bind9
    Fixed in 1:9.16.4-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • bind9
    Fixed in 1:9.16.4-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • bind9
    Fixed in 1:9.16.4-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • bind9
    Fixed in 1:9.16.1-0ubuntu2.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.