CVE-2020-1917

State: Published
Severity: Not scored
Published: Mar 10, 2021
Updated: Aug 4, 2024
Reserved: Dec 2, 2019

Description

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.

Scores

The record has no CVSS score.

Weaknesses

CWE-122 Heap-based Buffer Overflow (CWE-122)

Affected Products

Product	Versions
HHVMFacebook	4.98.1 to before unspecifiedNot affected 4.98.0Affected 4.97.1 to before unspecifiedNot affected 4.97.0Affected 4.96.1 to before unspecifiedNot affected 4.96.0Affected 4.95.1 to before unspecifiedNot affected 4.95.0Affected 4.94.1 to before unspecifiedNot affected 4.94.0Affected 4.93.2 to before unspecifiedNot affected 4.81.0 to before unspecifiedAffected 4.80.2 to before unspecifiedNot affected 4.57.0 to before unspecifiedAffected 4.56.3 to before unspecifiedNot affected before 4.56.3Affected

Product

Versions

HHVMFacebook

4.98.1 to before unspecifiedNot affected
4.98.0Affected
4.97.1 to before unspecifiedNot affected
4.97.0Affected
4.96.1 to before unspecifiedNot affected
4.96.0Affected
4.95.1 to before unspecifiedNot affected
4.95.0Affected
4.94.1 to before unspecifiedNot affected
4.94.0Affected
4.93.2 to before unspecifiedNot affected
4.81.0 to before unspecifiedAffected
4.80.2 to before unspecifiedNot affected
4.57.0 to before unspecifiedAffected
4.56.3 to before unspecifiedNot affected
before 4.56.3Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.