What is CVE-2018-6343?

CVE-2018-6343 is a high-severity vulnerability in Facebook Proxygen, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2018-12-31.

How severe is CVE-2018-6343?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Facebook Proxygen

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…

EPSS: 0.008 (53.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Facebook Proxygen — versions v2018.11.19.00, v2018.10.29.00, unspecified

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference
CWE-20 — Improper Input Validation

References

cve-assign@fb.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-6343?: CVE-2018-6343 is a high-severity vulnerability in Facebook Proxygen, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2018-12-31.
How severe is CVE-2018-6343?: High severity. CVSS v3 base score is 7.5 out of 10.