EUVD-2026-46365
GHSA-jxx5-5g59-8f3j
Lifecycle Timeline
2DescriptionCVE.org
Data::RingBuffer::Shared versions before 0.04 for Perl allow a stack buffer overflow via an unvalidated elem_size in ring_read_seq.
The attach-time validator ring_validate_header checks the capacity-overflow and total_size consistency of the header but never caps elem_size against the destination size. ring_read_seq does memcpy(out, ring_slot(h, seq), elem_size) with elem_size read raw from the mmap'd segment, copying into a fixed 8-byte destination scalar. An elem_size larger than 8 bytes writes past the destination.
A local peer that can write the backing file can leave the header valid while setting a large elem_size, so the next read copies a file-controlled length into the fixed 8-byte stack buffer, corrupting adjacent stack frames.
Analysis
Data::RingBuffer::Shared versions before 0.04 for Perl allow a stack buffer overflow via an unvalidated elem_size in ring_read_seq. The attach-time validator ring_validate_header checks the capacity-overflow and total_size consistency of the header but never caps elem_size against the destination size. …
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Multiple cross-site scripting (XSS) vulnerabilities in the Data module 6.x-1.x before 6.x-1.0 and 7.x-1.x before 7.x-1.0
Data::DisjointSet::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_
Data::SpatialHash::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_
Data::Intern::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL
Data::RingBuffer::Shared versions before 0.04 for Perl create a world-readable mmap backing file and open it without O_E
Data::RoaringBitmap::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without
Data::HashMap::Shared versions before 0.14 for Perl create a world-readable mmap backing file and open it without O_EXCL
Data::RadixTree::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EX
Data::SortedSet::Shared versions before 0.03 for Perl create a world-readable mmap backing file and open it without O_EX
Data::ReqRep::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_EXCL
Data::PubSub::Shared versions before 0.07 for Perl create a world-readable mmap backing file and open it without O_EXCL
Data::NDArray::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL
Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today