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unbound: symbolic link traversal when writing PID file

🗓️ 22 Feb 2022 15:16:51Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Unbound allows symbolic link traversal when writing the process id file, enabling a local user to overwrite a root file.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.2aarch64python3-unbound1.7.3-12.el8_2python3-unbound-1.7.3-12.el8_2.aarch64.rpm
Red Hat Enterprise Linux8.2ppc64lepython3-unbound1.7.3-12.el8_2python3-unbound-1.7.3-12.el8_2.ppc64le.rpm
Red Hat Enterprise Linux8.2s390xpython3-unbound1.7.3-12.el8_2python3-unbound-1.7.3-12.el8_2.s390x.rpm
Red Hat Enterprise Linux8.2x86_64python3-unbound1.7.3-12.el8_2python3-unbound-1.7.3-12.el8_2.x86_64.rpm
Red Hat Enterprise Linux8.2aarch64python3-unbound-debuginfo1.7.3-12.el8_2python3-unbound-debuginfo-1.7.3-12.el8_2.aarch64.rpm
Red Hat Enterprise Linux8.2i686python3-unbound-debuginfo1.7.3-12.el8_2python3-unbound-debuginfo-1.7.3-12.el8_2.i686.rpm
Red Hat Enterprise Linux8.2ppc64lepython3-unbound-debuginfo1.7.3-12.el8_2python3-unbound-debuginfo-1.7.3-12.el8_2.ppc64le.rpm
Red Hat Enterprise Linux8.2s390xpython3-unbound-debuginfo1.7.3-12.el8_2python3-unbound-debuginfo-1.7.3-12.el8_2.s390x.rpm
Red Hat Enterprise Linux8.2x86_64python3-unbound-debuginfo1.7.3-12.el8_2python3-unbound-debuginfo-1.7.3-12.el8_2.x86_64.rpm
Red Hat Enterprise Linux8.2aarch64unbound1.7.3-12.el8_2unbound-1.7.3-12.el8_2.aarch64.rpm
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26 Jun 2026 23:39Current
7.2High risk
Vulners AI Score7.2
CVSS 22.1
CVSS 3.15.5
EPSS0.00484
5