AZL-109505
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-109505.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-109505
- Upstream
- Published
- 2026-07-16T22:17:43Z
- Modified
- 2026-10-22T05:35:55Z
- Summary
- CVE-2026-57077 affecting package perl-YAML 1.30-2
- Details
-
YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newline_len.
In the bundled libsyck newline_len and is_newline dereference the scan pointer, and the following byte for a "\r\n" pair, with no NUL-terminator or bounds check. During block-scalar lexing at a document boundary the scan runs one byte past the heap lexer buffer. This is an incomplete fix of CVE-2025-11683, on a lexer path the earlier fix did not cover.
Any caller that runs Load or LoadFile on an untrusted document with a block scalar at a document boundary reaches the over-read.
- References