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CVE-2021-31618

Public on 2021-06-15
Modified on 2021-07-01
Description

A null pointer de-reference was found in the way httpd handled specially crafted HTTP/2 request. A remote attacker could use this flaw to crash the httpd child process, causing temporary denial of service.

Severity
Important
See what this means
CVSS v3 Base Score
7.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core httpd 2021-06-24 02:45 ALAS2-2021-1672
Amazon Linux 2 - Core mod_http2 2021-07-01 01:04 ALAS2-2021-1678

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
NVD CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Red Hat: CVE-2021-31618 Mitre: CVE-2021-31618 FAQs regarding Amazon Linux ALAS/CVE Severity