SB2022031733 - Fedora 35 update for httpd
Published: March 17, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2022-23943)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in mod_sed. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
2) Integer overflow (CVE-ID: CVE-2022-22721)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow within the ap_escape_html2() function when parsing LimitXMLRequestBody. A remote attacker can send a specially crafted request to the web server, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2022-22720)
The vulnerability allows a remote attacker to preform HTTP request smuggling attacks.
The vulnerability exists due to improper validation of HTTP requests. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.
Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.
4) Input validation error (CVE-ID: CVE-2022-22719)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized value in r:parsebody. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
5) Buffer overflow (CVE-ID: CVE-2021-44790)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when parsing multipart content in mod_lua. A remote attacker can send a specially crafted HTTP request to the affected web server, trigger buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
6) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2021-44224)
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input in forward proxy configurations. A remote attacker can send a specially crafted HTTP request and trick the web server to initiate requests to arbitrary systems or cause NULL pointer dereference error and crash the web server.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
SSRF if possible for configuration that mix forward and reverse proxy.
Remediation
Install update from vendor's website.