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unbound: integer overflow in the regional allocator via the ALIGN_UP macro

🗓️ 08 Nov 2022 10:08:39Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 6 Views

Unbound overflow in regional allocator via ALIGN UP macro allows attacker-controlled sizes to cause a buffer overflow.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64python3-unbound0:1.16.2-2.el8python3-unbound-0:1.16.2-2.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lepython3-unbound0:1.16.2-2.el8python3-unbound-0:1.16.2-2.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xpython3-unbound0:1.16.2-2.el8python3-unbound-0:1.16.2-2.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64python3-unbound0:1.16.2-2.el8python3-unbound-0:1.16.2-2.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64python3-unbound-debuginfo0:1.16.2-2.el8python3-unbound-debuginfo-0:1.16.2-2.el8.aarch64.rpm
Red Hat Enterprise Linux8i686python3-unbound-debuginfo0:1.16.2-2.el8python3-unbound-debuginfo-0:1.16.2-2.el8.i686.rpm
Red Hat Enterprise Linux8ppc64lepython3-unbound-debuginfo0:1.16.2-2.el8python3-unbound-debuginfo-0:1.16.2-2.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xpython3-unbound-debuginfo0:1.16.2-2.el8python3-unbound-debuginfo-0:1.16.2-2.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64python3-unbound-debuginfo0:1.16.2-2.el8python3-unbound-debuginfo-0:1.16.2-2.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64unbound0:1.16.2-2.el8unbound-0:1.16.2-2.el8.aarch64.rpm
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21 Nov 2025 18:34Current
6Medium risk
Vulners AI Score6
CVSS 27.5
CVSS 3.19.8
EPSS0.01783
SSVC
CWE-190
unboundinteger overflowregional allocatorAlign Up macrobuffer overflowattacker controlled sizedata confidentialityservice availability
6