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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: facebook

Published: 2021-03-10T15:50:28

Updated: 2024-08-04T06:53:59.921Z

Reserved: 2019-12-02T00:00:00

Link: CVE-2020-1917

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-03-10T16:15:14.313

Modified: 2021-03-17T19:29:32.607

Link: CVE-2020-1917

cve-icon Redhat

No data.