AZL-79977
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-79977.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-79977
- Upstream
- Published
- 2026-03-16T23:16:21Z
- Modified
- 2026-08-30T05:24:52Z
- Summary
- CVE-2026-4177 affecting package perl-YAML-Syck 1.34-1
- Details
-
YAML::Syck versions through 1.36 for Perl has several potential security vulnerabilities including a high-severity heap buffer overflow in the YAML emitter.
The heap overflow occurs when class names exceed the initial 512-byte allocation.
The base64 decoder could read past the buffer end on trailing newlines.
strtok mutated n->type_id in place, corrupting shared node data.
A memory leak occurred in syckhdlradd_anchor when a node already had an anchor. The incoming anchor string 'a' was leaked on early return.
- References