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CRITICAL · 9.8

CVE-2019-11940

In the course of decompressing HPACK inside the HTTP2 protocol, an unexpected sequence of header table resize operations can place the header table into a corrupted state, leading to a use-after-free ...

Vulnerability Description

In the course of decompressing HPACK inside the HTTP2 protocol, an unexpected sequence of header table resize operations can place the header table into a corrupted state, leading to a use-after-free condition and undefined behavior. This issue affects Proxygen from v0.29.0 until v2017.04.03.00.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
FacebookProxygen>= 0.29.0, <= 2017.04.03.00

Related Weaknesses (CWE)

CWE-416

References

FAQ

What is CVE-2019-11940?

CVE-2019-11940 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In the course of decompressing HPACK inside the HTTP2 protocol, an unexpected sequence of header table resize operations can place the header table into a corrupted state, leading to a use-after-free ...

How severe is CVE-2019-11940?

CVE-2019-11940 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2019-11940?

Check the references section above for vendor advisories and patch information. Affected products include: Facebook Proxygen.