| Title | Open Babel 3.1.1 / master commit 889c350 NULL Pointer Dereference |
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| Description | Open Babel 3.1.1 (master commit 889c350) is vulnerable to a null pointer dereference in the PQS format parser. The function PQSFormat::ReadMolecule invokes the helper lowerit(char*) with a pointer that may be nullptr or reference an invalid, non-null-terminated buffer. Because no validation is performed before calling strncpy inside lowerit, crafted input can trigger a segmentation fault. |
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| Source | ⚠️ https://github.com/openbabel/openbabel/issues/2826 |
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| User | ahuo (UID 90189) |
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| Submission | 09/14/2025 10:08 (7 months ago) |
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| Moderation | 09/25/2025 20:05 (11 days later) |
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| Status | Accepted |
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| VulDB entry | 325928 [Open Babel up to 3.1.1 PQSformat.cpp PQSFormat::ReadMolecule null pointer dereference] |
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| Points | 20 |
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