PT-2026-55142 · Pypi · Open Babel
Publicado
2026-07-01
·
Atualizado
2026-07-01
CVSS v3.1
7.8
Alta
| Vetor | AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Summary
A memory-safety vulnerability in Open Babel's MOPAC input parser
allowed an out-of-bounds write into the
translationVectors[] array
when reading Tv (translation-vector) atoms from a crafted input
file.Details
The MOPAC IN reader stored Tv-atom translation vectors into a
fixed-size
translationVectors[] array. A malformed input with
more than three Tv atoms (or three plus extras) could push more
vectors than the array had slots, causing a write past the end of
the array. One of five translationVectors[] OOB writes in the
TALOS 2022 batch.Impact
Open Babel is a C++ library and CLI used to read and write chemistry
file formats; it is shipped by Linux distributions and embedded in
services that may parse untrusted input. Triggering this vulnerability
requires the victim to open a malicious MOPAC input file with the
obabel tool, the OBConversion API, or any of the language
bindings (Python, Ruby, Java, R, Perl, C#, PHP).Affected versions
All releases up to and including 3.1.1.
Patched version
3.2.0 (released 2026-05-26).
Patch
A minimized reproducer for this CVE is checked in under
test/files/fuzz regress/ and is exercised on every CI build under
ASAN+UBSAN by the fuzzregresstest harness.Credit
Reported by Cisco TALOS.
Correção
Buffer Overflow
Memory Corruption
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Identificadores relacionados
Produtos afetados
Open Babel