Buffer overflow in IBM HTTP Server



Published: 2022-09-13
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-39275
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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IBM HTTP Server
Server applications / Web servers

Vendor IBM Corporation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU56679

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-39275

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system or perform a denial of service attack.

The vulnerability exists due to a boundary error within the ap_escape_quotes()  function. A remote attacker can send a specially crafted request to the web server, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires that the Apache module passes untrusted data to the affected function.

According to vendor, No included modules pass untrusted data to these functions

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM HTTP Server: before 7.0.0.45


CPE2.3
External links

http://www.ibm.com/blogs/psirt/security-bulletin-vulnerability-in-ibm-http-server-used-by-websphere-application-server/
http://www.ibm.com/support/pages/node/6493845

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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