CVE-2016-15059
NVD: Net::IDN::Punycode versions before 2.301 for Perl allow a heap buffer overflow via unchecked writes past the output buffer in encode_punycode. NVD: The XS backend builds the encoded label in the string buffer of the scalar it returns, sized from the input length. NVD: The loop that emits the digits of each code point checks for room before every write, but the write of the last digit of each round and the write of the terminating NUL do not, so an input whose encoded form fills the buffer writes past its end.
9.8 Severity
CRITICAL EPSS
0.0042 (34) KEV
-
Source-published summary
NVD: Net::IDN::Punycode versions before 2.301 for Perl allow a heap buffer overflow via unchecked writes past the output buffer in encode_punycode. NVD: The XS backend builds the encoded label in the string buffer of the scalar it returns, sized from the input length. NVD: The loop that emits the digits of each code point checks for room before every write, but the write of the last digit of each round and the write of the terminating NUL do not, so an input whose encoded form fills the buffer writes past its end.
Possible impact
Source describes memory safety review. Possible impact: The affected component has memory-safety risk that may lead to crash, privilege, or code-execution impact depending on exposure.
Affected context
Affected product or version requires source confirmation.
Remediation / advisory
Remediation reference present; patch status requires confirmation in the linked advisory.
Why it matters
Source describes memory safety review. Possible impact: The affected component has memory-safety risk that may lead to crash, privilege, or code-execution impact depending on exposure.; CVSS 9.8 (CRITICAL); EPSS percentile 34; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD, OSV.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
exposure unknown
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD / OSV description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.