LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables were filled from the file, but the write position was not reset between the two passes over the record, so a file whose combined colour counts exceeded the table size wrote past the end of the tables on the stack. In fixed versions the unused second pass is no longer read into those tables.
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Affected Vendors & Products
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History
Mon, 15 Jun 2026 20:30:00 +0000
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Mon, 15 Jun 2026 18:00:00 +0000
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| Description | LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables were filled from the file, but the write position was not reset between the two passes over the record, so a file whose combined colour counts exceeded the table size wrote past the end of the tables on the stack. In fixed versions the unused second pass is no longer read into those tables. | |
| Title | Stack buffer overflow in PPT presentation import | |
| Weaknesses | CWE-121 CWE-787 |
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cvssV4_0
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Status: PUBLISHED
Assigner: Document Fdn.
Published:
Updated: 2026-06-15T18:05:22.786Z
Reserved: 2026-05-11T18:42:20.783Z
Link: CVE-2026-8356
Updated: 2026-06-15T18:05:17.104Z
Status : Received
Published: 2026-06-15T18:16:37.390
Modified: 2026-06-15T18:16:37.390
Link: CVE-2026-8356
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OpenCVE Enrichment
No data.