Multiple BIND DNS Server Vulnerabilities Disclosed
ISC's BIND DNS server has multiple vulnerabilities that could cause denial of service, degraded performance, or abuse as a reflection attack platform.
Sourceipa.go.jp — open the original
What to check
- Applies to
- The 2 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- A public exploit is recorded for CVE-2020-8617 (weaponized); no exploitation in the wild is recorded.
IPA (Information-technology Promotion Agency, Japan) issued an advisory warning of multiple vulnerabilities in ISC BIND, a widely used DNS server software. Exploitation could lead to increased server load and performance degradation, abuse of the server as a reflection attack amplifier, or unintended service outages.
As of the advisory date, no active exploitation had been observed, but IPA urged DNS server administrators to apply updates urgently given the likelihood of future attacks. Patches are available from ISC directly or from vendors distributing BIND; the open-source version can be downloaded from the ISC website.
Mentioned in this report
Source reporting: https://www.ipa.go.jp/archive/security/security-alert/2020/alert20200520.html
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