Описание
When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access (double-free) and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version. We would like to thank Charles Howes for bringing this issue to our attention.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | not-affected | 1.9.10-1 |
| esm-apps-legacy/xenial | not-affected | code not present |
| esm-apps/bionic | not-affected | code not present |
| esm-apps/focal | not-affected | code not present |
| esm-apps/jammy | not-affected | code not present |
| esm-apps/noble | not-affected | code not present |
| esm-apps/xenial | not-affected | code not present |
| focal | ignored | end of standard support, was needs-triage |
| jammy | not-affected | code not present |
| noble | not-affected | code not present |
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Ссылки на источники
EPSS
7.5 High
CVSS3
Связанные уязвимости
When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access (double-free) and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version. We would like to thank Charles Howes for bringing this issue to our attention.
When DNSdist is configured to provide DoH via the nghttp2 provider, an ...
When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access (double-free) and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version. We would like to thank Charles Howes for bringing this issue to our attention.
Уязвимость компонента nghttp2 Provider программного обеспечения PowerDNS DNSdist, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
7.5 High
CVSS3