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CVE-2020-1917

UNKNOWN
Published 2021-03-10T15:50:28
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No CVSS data available

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Facebook

HHVM

Affected Versions:

4.98.1 4.98.0 4.97.1 4.97.0 4.96.1 4.96.0 4.95.1 4.95.0 4.94.1 4.94.0 4.93.2 4.81.0 4.80.2 4.57.0 4.56.3 unspecified

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed CRITICAL

GHSA-gf82-22g8-prc5

Advisory Details

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.

CVSS Scoring

CVSS Score

9.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2020-1917
WEB https://github.com/facebook/hhvm/commit/08193b7f0cd3910256e00d599f0f3eb2519c44ca
WEB https://hhvm.com/blog/2021/02/25/security-update.html

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: April 4, 2024

References

https://hhvm.com/blog/2021/02/25/security-update.html
https://github.com/facebook/hhvm/commit/08193b7f0cd3910256e00d599f0f3eb2519c44ca
Published: 2021-03-10T15:50:28
Last Modified: 2024-08-04T06:53:59.921Z
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