Out-of-bounds read In libyaml-syck-perl
Description
YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure Missing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read The issue is seen with complex YAML files with a hash of all keys and empty values. There is no indication that the issue leads to accessing memory outside that allocated to the module.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 debian 12 | 1.34-2+deb12u1 | ||
debian 11 | 1.34-1+deb11u1 | ||
debian 13 | 1.34-2+deb13u1 | ||
debian 14 | 1.34-4 | ||
 rpm rhel8 | - | - | |
rpm rhel7 | - | - | |
rpm rhel6 | - | - |
Aliases
1. 2. 3. 4. 5.