Resource Exhaustion Affecting bind-sdb-chroot package, versions <32:9.11.4-26.P2.el7_9.16


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-RHEL7-BINDSDBCHROOT-6246265
  • published14 Feb 2024
  • disclosed13 Feb 2024

Introduced: 13 Feb 2024

CVE-2023-4408  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade RHEL:7 bind-sdb-chroot to version 32:9.11.4-26.P2.el7_9.16 or higher.
This issue was patched in RHSA-2024:3741.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind-sdb-chroot package and not the bind-sdb-chroot package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The DNS message parsing code in named includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected named instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers. This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

CVSS Scores

version 3.1