Alpine: multiple apache2 packages: security update to 2.4.49-r0

critical Tenable Cloud Security Plugin ID 423654

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead
to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.
(CVE-2021-33193)

- Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP
Server 2.4.48 and earlier. (CVE-2021-34798)

- A carefully crafted request uri-path can cause mod_proxy_uwsgi to read above the allocated memory and
crash (DoS). This issue affects Apache HTTP Server versions 2.4.30 to 2.4.48 (inclusive). (CVE-2021-36160)

- ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules
pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache
HTTP Server 2.4.48 and earlier. (CVE-2021-39275)

- A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the
remote user. This issue affects Apache HTTP Server 2.4.48 and earlier. (CVE-2021-40438)

Plugin Details

Severity: Critical

ID: 423654

Version: Revision 1.8

Type: Local

Family: Alpine Linux Local Security Checks

Published: 4/4/2025

Updated: 6/20/2025

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: High

Score: 8

Percentile: 99.68

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-39275

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 6/3/2021

CISA Known Exploited Vulnerability Due Dates: 12/15/2021

Reference Information

CVE: CVE-2021-33193, CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-40438

IAVA: 2021-A-0259-S, 2021-A-0440-S

Detections

Analytics