CVE-2019-11934 : Improper handling of close_notify alerts can result in an out-of-bounds read in

Improper handling of close_notify alerts can result in an out-of-bounds read in AsyncSSLSocket. This issue affects folly prior to v2019.11.04.00.

Published 2019-12-04 17:16:43

Updated 2019-12-13 19:28:19

Source Facebook, Inc.

View at NVD, CVE.org

Products affected by CVE-2019-11934

Facebook » Folly
Versions before (<) 2019.11.04.00
cpe:2.3:a:facebook:folly:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.24%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 61 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

https://github.com/facebook/folly/commit/c321eb588909646c15aefde035fd3133ba32cdee

Handle close_notify as standard writeErr in AsyncSSLSocket. · facebook/folly@c321eb5 · GitHub
Patch;Third Party Advisory
https://www.facebook.com/security/advisories/cve-2019-11934

Facebook
Third Party Advisory

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