Описание
TSIG packet with name compression can crash DNS. Incorrect size calculations when a TSIG record contains compressed names can lead to a large out-of-bounds write causing the server to crash.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | not-affected | 2:4.24.6+dfsg-1ubuntu1 |
| esm-infra-legacy/trusty | needs-triage | |
| esm-infra-legacy/xenial | needs-triage | |
| esm-infra/bionic | needs-triage | |
| esm-infra/focal | needs-triage | |
| jammy | released | 2:4.15.13+dfsg-0ubuntu1.13 |
| noble | released | 2:4.19.5+dfsg-4ubuntu9.7 |
| resolute | released | 2:4.23.6+dfsg-1ubuntu2.2 |
| stonking | not-affected | 2:4.24.6+dfsg-1ubuntu1 |
| upstream | released | 4.24.5,4.23.10,4.22.11 |
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Связанные уязвимости
A flaw was found in Samba's internal DNS server when processing TSIG-signed DNS packets containing compressed names. Incorrect size calculations while determining the portion of the DNS packet covered by the TSIG signature can result in an integer underflow, leading to an out-of-bounds memory write during packet processing. A remote attacker can send a specially crafted TSIG-signed DNS packet to cause the DNS server to terminate unexpectedly.
