Vulnerability identifier: #VU67487

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-26691

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache HTTP Server
Server applications / Web servers

Vendor:

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error in Apache httpd mod_session. A remote attacker can pass a specially crafted file, trigger memory corruption and perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-affect-ibm-cloud-object-storage-systems-sept-2021-v1/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.