CVE-2020-8616

Name
CVE-2020-8616
Description
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.
NVD Severity
high
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Exploit http://www.nxnsattack.com
Patch https://kb.isc.org/docs/cve-2020-8616
Mailing List http://www.openwall.com/lists/oss-security/2020/05/19/4
Third Party Advisory https://www.debian.org/security/2020/dsa-4689
CONFIRM https://security.netapp.com/advisory/ntap-20200522-0002/
UBUNTU https://usn.ubuntu.com/4365-2/
CONFIRM https://www.synology.com/security/advisory/Synology_SA_20_12
UBUNTU https://usn.ubuntu.com/4365-1/
MLIST https://lists.debian.org/debian-lts-announce/2020/05/msg00031.html
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* bind >= 9.0.0 <= 9.11.18
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* bind >= 9.12.0 <= 9.12.4
cpe:2.3:a:isc:bind:9.12.4:p1:*:*:*:*:*:* bind == None == 9.12.4
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* bind >= 9.13.0 <= 9.13.7
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* bind >= 9.14.0 <= 9.14.11
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* bind >= 9.15.0 <= 9.15.6
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* bind >= 9.16.0 <= 9.16.2
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* bind >= 9.17.0 <= 9.17.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status