CVE-2020-10030

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Summary

CVECVE-2020-10030
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-05-19 16:15:00 UTC
Updated2023-11-07 03:14:00 UTC
DescriptionAn issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0. It allows an attacker (with enough privileges to change the system's hostname) to cause disclosure of uninitialized memory content via a stack-based out-of-bounds read. It only occurs on systems where gethostname() does not have '\0' termination of the returned string if the hostname is larger than the supplied buffer. (Linux systems are not affected because the buffer is always large enough. OpenBSD systems are not affected because the returned hostname always has '\0' termination.) Under some conditions, this issue can lead to the writing of one '\0' byte out-of-bounds on the stack, causing a denial of service or possibly arbitrary code execution.

Risk And Classification

Problem Types: CWE-125

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Powerdns Recursor All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 31 Update: pdns-recursor-4.2.2-1.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
PowerDNS Security Advisory 2020-03: Information disclosure — PowerDNS Recursor documentation CONFIRM doc.powerdns.com Vendor Advisory
[security-announce] openSUSE-SU-2020:0698-1: moderate: Security update f SUSE lists.opensuse.org
[SECURITY] Fedora 32 Update: pdns-recursor-4.3.1-1.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 32 Update: pdns-recursor-4.3.1-1.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 31 Update: pdns-recursor-4.2.2-1.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
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