Vulnerability Details : CVE-2018-6343
Proxygen fails to validate that a secondary auth manager is set before dereferencing it. That can cause a denial of service issue when parsing a Certificate/CertificateRequest HTTP2 Frame over a fizz (TLS 1.3) transport. This issue affects Proxygen releases starting from v2018.10.29.00 until the fix in v2018.11.19.00.
Vulnerability category: Input validationDenial of service
Products affected by CVE-2018-6343
- cpe:2.3:a:facebook:proxygen:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-6343
0.27%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-6343
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-6343
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: cve-assign@fb.com (Secondary)
References for CVE-2018-6343
-
https://github.com/facebook/proxygen/commit/0600ebe59c3e82cd012def77ca9ca1918da74a71
Check that a secondary auth manager is set before dereferencing. · facebook/proxygen@0600ebe · GitHubPatch;Third Party Advisory
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