CVE-2020-8620

NameCVE-2020-8620
DescriptionIn BIND 9.15.6 -> 9.16.5, 9.17.0 -> 9.17.3, An attacker who can establish a TCP connection with the server and send data on that connection can exploit this to trigger the assertion failure, causing the server to exit.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bind9 (PTS)stretch1:9.10.3.dfsg.P4-12.3+deb9u6fixed
stretch (security)1:9.10.3.dfsg.P4-12.3+deb9u7fixed
buster, buster (security)1:9.11.5.P4+dfsg-5.1+deb10u2fixed
bullseye, sid1:9.16.6-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bind9sourcestretch(not affected)
bind9sourcebuster(not affected)
bind9source(unstable)1:9.16.6-1

Notes

[buster] - bind9 <not-affected> (Vulnerable code introduced later)
[stretch] - bind9 <not-affected> (Vulnerable code introduced later)
https://kb.isc.org/docs/cve-2020-8620
https://gitlab.isc.org/isc-projects/bind9/commit/9a372f2bce642545164d2b4408eb6c4e301acc5e (v9_16_6)

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