Critical severity · published Dec 4, 2019
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…
9.8
CVSS
1.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
Proxygen · Facebook
0.29.0 through 2017.04.03.00 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-11940
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-11940
Patch
https://github.com/facebook/proxygen/commit/f43b134cc5c19d8532e7fb670a1c02e85f7a8d4f
Third Party Advisory
https://www.facebook.com/security/advisories/cve-2019-11940
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