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unbound: integer overflow in the regional allocator via regional_alloc

🗓️ 22 Feb 2022 15:16:51Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

Unbound regional_alloc overflow may enable a buffer overflow when size is attacker controlled, risking confidentiality, integrity, and availability.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.2aarch64python3-unbound0:1.7.3-12.el8_2python3-unbound-0:1.7.3-12.el8_2.aarch64.rpm
Red Hat Enterprise Linux8.2ppc64lepython3-unbound0:1.7.3-12.el8_2python3-unbound-0:1.7.3-12.el8_2.ppc64le.rpm
Red Hat Enterprise Linux8.2s390xpython3-unbound0:1.7.3-12.el8_2python3-unbound-0:1.7.3-12.el8_2.s390x.rpm
Red Hat Enterprise Linux8.2x86_64python3-unbound0:1.7.3-12.el8_2python3-unbound-0:1.7.3-12.el8_2.x86_64.rpm
Red Hat Enterprise Linux8.2aarch64python3-unbound-debuginfo0:1.7.3-12.el8_2python3-unbound-debuginfo-0:1.7.3-12.el8_2.aarch64.rpm
Red Hat Enterprise Linux8.2ppc64lepython3-unbound-debuginfo0:1.7.3-12.el8_2python3-unbound-debuginfo-0:1.7.3-12.el8_2.ppc64le.rpm
Red Hat Enterprise Linux8.2s390xpython3-unbound-debuginfo0:1.7.3-12.el8_2python3-unbound-debuginfo-0:1.7.3-12.el8_2.s390x.rpm
Red Hat Enterprise Linux8.2x86_64python3-unbound-debuginfo0:1.7.3-12.el8_2python3-unbound-debuginfo-0:1.7.3-12.el8_2.x86_64.rpm
Red Hat Enterprise Linux8.2anypython3-unbound-debuginfo0:1.7.3-12.el8_2.i686python3-unbound-debuginfo-0:1.7.3-12.el8_2.i686.noarch.rpm
Red Hat Enterprise Linux8.2aarch64unbound0:1.7.3-12.el8_2unbound-0:1.7.3-12.el8_2.aarch64.rpm
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26 Jun 2026 23:39Current
7.5High risk
Vulners AI Score7.5
CVSS 27.5
CVSS 3.19.8
EPSS0.02179
3