xbuf_format_converter, used as part of exif_read_data, was appending a terminating null character to the generated string, but was not using its standard append char function. As a result, if the buffer was full, it would result in an out-of-bounds write. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.
Metrics
Affected Vendors & Products
References
History
No history.
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Status: PUBLISHED
Assigner: facebook
Published:
Updated: 2024-08-04T06:53:59.921Z
Reserved: 2019-12-02T00:00:00
Link: CVE-2020-1917
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Status : Modified
Published: 2021-03-10T16:15:14.313
Modified: 2024-11-21T05:11:36.520
Link: CVE-2020-1917
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