CVE-2020-1916
Last modified
CVE-2020-1916 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An incorrect size calculation in ldap_escape may lead to an integer overflow when overly long input is passed in, resulting in an out-of-bounds write. This issue affects HHVM prior to 4.56.2, all versions between 4.57.0 and 4.78.0, 4.79.0, 4.80.0, 4.81.0, 4.82.0, 4.83.0.. EPSS estimates a 1.38% chance of exploitation in the next 30 days.
Description
An incorrect size calculation in ldap_escape may lead to an integer overflow when overly long input is passed in, resulting in an out-of-bounds write. This issue affects HHVM prior to 4.56.2, all versions between 4.57.0 and 4.78.0, 4.79.0, 4.80.0, 4.81.0, 4.82.0, 4.83.0.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hhvm | < 4.56.2 | |
| Hhvm | >= 4.57.0, < 4.78.1 | |
| Hhvm | 4.79.0 | |
| Hhvm | 4.80.0 | |
| Hhvm | 4.81.0 | |
| Hhvm | 4.82.0 | |
| Hhvm | 4.83.0 |
References
- https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4Patch, Third Party Advisory
- https://hhvm.com/blog/2020/11/12/security-update.htmlRelease Notes, Vendor Advisory
- https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4Patch, Third Party Advisory
- https://hhvm.com/blog/2020/11/12/security-update.htmlRelease Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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