CVE-2019-20391

An invalid memory access flaw is present in libyang before v1.0-r3 in the function resolve_feature_value() when an if-feature statement is used inside a bit. Applications that use libyang to parse untrusted input yang files may crash.

• CWE-119

• https://bugzilla.redhat.com/show_bug.cgi?id=1793934Issue Tracking, Patch, Third Party Advisory
• https://github.com/CESNET/libyang/commit/bdb596ddc07596fa212f231135b87d0b9178f6f8Patch, Third Party Advisory
• https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3Third Party Advisory
• https://github.com/CESNET/libyang/issues/772Exploit, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html
• https://bugzilla.redhat.com/show_bug.cgi?id=1793934Issue Tracking, Patch, Third Party Advisory
• https://github.com/CESNET/libyang/commit/bdb596ddc07596fa212f231135b87d0b9178f6f8Patch, Third Party Advisory
• https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3Third Party Advisory
• https://github.com/CESNET/libyang/issues/772Exploit, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html

Published

Jan 22, 2020

Last Modified

Jun 17, 2026

Status

Modified

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