Описание
A use-after-return vulnerability exists in the named server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | not-affected | 1:9.20.18-1ubuntu2 |
| esm-infra-legacy/trusty | not-affected | |
| esm-infra/bionic | not-affected | |
| esm-infra/focal | not-affected | |
| esm-infra/xenial | not-affected | |
| jammy | not-affected | 1:9.18.39-0ubuntu0.22.04.2 |
| noble | not-affected | 1:9.18.39-0ubuntu0.24.04.2 |
| questing | released | 1:9.20.11-1ubuntu2.2 |
| upstream | released | 9.20.21,9.21.20 |
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| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra/focal | needs-triage | |
| jammy | needs-triage | |
| noble | DNE | |
| questing | DNE | |
| upstream | needs-triage |
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| Релиз | Статус | Примечание |
|---|---|---|
| devel | needs-triage | |
| esm-apps/noble | needs-triage | |
| esm-infra-legacy/trusty | not-affected | code not present |
| esm-infra/bionic | needs-triage | |
| esm-infra/focal | not-affected | code not present |
| esm-infra/xenial | not-affected | code not present |
| jammy | not-affected | code not present |
| noble | needs-triage | |
| questing | needs-triage | |
| upstream | needs-triage |
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5.4 Medium
CVSS3
Связанные уязвимости
A use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
A use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
A stack use-after-return flaw in SIG(0) handling code may enable ACL bypass
A use-after-return vulnerability exists in the `named` server when han ...
A use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
5.4 Medium
CVSS3