Critical severity · published Apr 29, 2019
CVE-2019-3563
Wangle's LineBasedFrameDecoder contains logic for identifying newlines which incorrectly advances a buffer, leading to a potential underflow
9.8
CVSS
1.7%
EPSS
No
On KEV
Description
Wangle's LineBasedFrameDecoder contains logic for identifying newlines which incorrectly advances a buffer, leading to a potential underflow. This affects versions of Wangle prior to v2019.04.22.00
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)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WA
Wangle · Facebook
before 2019.04.22.00 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-3563
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-3563
Patch
https://github.com/facebook/wangle/commit/5b3bceca875e4ea4ed9d14c20b20ce46c92c13c6
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Wangle's AcceptRoutingHandler incorrectly casts a socket when accepting a TLS 1.3 connection, leading to a potential denial of service attack against systems accepting such…