CVE-2021-44790 — CRITICAL (9.8)

Q: How severe is CVE-2021-44790?

CVE-2021-44790 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2021-44790?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Http Server, Fedoraproject Fedora, Debian Debian Linux, Tenable Tenable.Sc, Netapp Cloud Backup.

Vulnerability Description

A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apache	Http Server	< 2.4.52
Fedoraproject	Fedora	34
Debian	Debian Linux	10.0
Tenable	Tenable.Sc	>= 5.16.0, < 5.20.0
Netapp	Cloud Backup	-
Oracle	Communications Element Manager	<= 9.0
Oracle	Communications Operations Monitor	4.3
Oracle	Communications Session Report Manager	<= 9.0
Oracle	Communications Session Route Manager	<= 9.0
Oracle	Http Server	12.2.1.3.0
Oracle	Instantis Enterprisetrack	17.1
Oracle	Zfs Storage Appliance Kit	8.8
Apple	Mac Os X	10.15.7
Apple	Macos	< 10.15.7

Related Weaknesses (CWE)

CWE-787

References

http://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
http://packetstormsecurity.com/files/171631/Apache-2.4.x-Buffer-Overflow.htmlExploit
http://seclists.org/fulldisclosure/2022/May/33Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2022/May/35Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2022/May/38Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2021/12/20/4Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproThird Party Advisory
https://security.gentoo.org/glsa/202208-20Third Party Advisory
https://security.netapp.com/advisory/ntap-20211224-0001/Third Party Advisory
https://support.apple.com/kb/HT213255Third Party Advisory
https://support.apple.com/kb/HT213256Third Party Advisory
https://support.apple.com/kb/HT213257Third Party Advisory

FAQ

What is CVE-2021-44790?

CVE-2021-44790 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabi...

How severe is CVE-2021-44790?

CVE-2021-44790 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-44790?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Http Server, Fedoraproject Fedora, Debian Debian Linux, Tenable Tenable.Sc, Netapp Cloud Backup.