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CVE-2021-44224

Public on 2021-12-20
Modified on 2023-01-18
Description

There's a null pointer dereference and server-side request forgery flaw in httpd's mod_proxy module, when it is configured to be used as a forward proxy. A crafted packet could be sent on the adjacent network to the forward proxy that could cause a crash, or potentially SSRF via misdirected Unix Domain Socket requests. In the worst case, this could cause a denial of service or compromise to confidentiality of data.

Severity
Medium
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CVSS v3 Base Score
7.1
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core httpd 2022-01-18 21:37 ALAS2-2022-1737
Amazon Linux 2023 httpd 2023-02-17 20:46 ALAS2023-2023-072
Amazon Linux 1 httpd24 2022-01-18 20:14 ALAS-2022-1560

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.1 CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H
NVD CVSSv2 6.4 AV:N/AC:L/Au:N/C:N/I:P/A:P
NVD CVSSv3 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H