Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2024-12705: Clients using DNS-over-HTTPS (DoH) can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic. This issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, and 9.18.11-S1 through 9.18.32-S1. CVE-2024-11187: It is possible to construct a zone such that some queries to it will generate responses containing numerous records in the Additional section. An attacker sending many such queries can cause either the authoritative server itself or an independent resolver to use disproportionate resources processing the queries. Zones will usually need to have been deliberately crafted to attack this exposure. This issue affects BIND 9 versions 9.11.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.32-S1.
Fixed packages 17
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | bind | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-chroot | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-debuginfo | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-devel | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-export-devel | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-export-libs | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-libs | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-libs-lite | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-license | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-lite-devel | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-pkcs11 | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-pkcs11-devel | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-pkcs11-libs | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-pkcs11-utils | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-sdb | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-sdb-chroot | 32:9.11.4-26.P2.amzn2.13.11 |
| Amazon Linux · 2 | bind-utils | 32:9.11.4-26.P2.amzn2.13.11 |
Vulnerabilities 2
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High 7.5CVE-2024-11187 EPSS 16%
Many records in the additional section cause CPU exhaustion
It is possible to construct a zone such that some queries to it will generate responses containing numerous records in the Additional section. An attacker sending many such queries can cause either the authoritative server itself or an independent resolver to…
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High 7.5CVE-2024-12705 EPSS 19%
DNS-over-HTTPS implementation suffers from multiple issues under heavy query load
Clients using DNS-over-HTTPS (DoH) can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic. This issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, and 9.18.11…