CVE-2020-1916
CRITICAL
9.8
CVSS Score
Published: March 10, 2021 at 03:50 PM UTC
Updated: June 17, 2026 at 03:02 AM UTC
1 product affected across 1 vendorHHVM
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Severity
CRITICAL9.8
Exploit prediction
EPSS 1%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Vendor states this is fixed in 4.56.2 (unaffected)
Vendor states this is fixed in 4.78.1 (unaffected)
Vendor states this is fixed in 4.79.1 (unaffected)
Vendor states this is fixed in 4.80.1 (unaffected)
Vendor states this is fixed in 4.81.1 (unaffected)
Vendor states this is fixed in 4.82.1 (unaffected)
Vendor states this is fixed in 4.83.1 (unaffected)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4x_refsource_CONFIRMRelease NotesVendor Advisory
Source: [email protected]
https://hhvm.com/blog/2020/11/12/security-update.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-122CWE-787
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