DEBIAN-CVE-2026-57077
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-57077
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-57077.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-57077
- Upstream
- Published
- 2026-07-16T22:17:43Z
- Modified
- 2026-09-01T16:06:52Z
- Severity
-
- 7.7 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- [none]
- 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
Affected packages
Debian:12 / libyaml-syck-perl
Package
- Name
- libyaml-syck-perl
- Purl
- pkg:deb/debian/libyaml-syck-perl?arch=source&distro=bookworm
Debian:13 / libyaml-syck-perl
Package
- Name
- libyaml-syck-perl
- Purl
- pkg:deb/debian/libyaml-syck-perl?arch=source&distro=trixie
Debian:14 / libyaml-syck-perl
Package
- Name
- libyaml-syck-perl
- Purl
- pkg:deb/debian/libyaml-syck-perl?arch=source&distro=forky