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6.5 Medium

CVE-2020-8622 In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9…

Description

In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.

Affected products and versions

Product Affected versions Fixed in
BIND9 9.17 earliest → latest 9.17.4
BIND9 9.16 earliest → < 9.16.6 9.16.6
BIND9 9.12 9.12.0 → latest No fix stated
BIND9 9.11 earliest → < 9.11.22 9.11.22
BIND9 9.9 9.9.3-S1 → latest No fix stated
BIND9 9.0 9.0.0 → latest No fix stated

Other CVEs of BIND9

The 23 CVEs of BIND9 →
CVE-2022-3080 By sending specific queries to the resolver, an attacker can cause named to crash 7.5 High CVE-2022-38178 By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small… 7.5 High CVE-2022-38177 By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small… 7.5 High CVE-2022-2906 An attacker can leverage this flaw to gradually erode available memory to the point where named crashes for lack of… 7.5 High
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