Vulnerability Details : CVE-2021-44790
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.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2021-44790
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-008:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-001:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-002:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-003:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_operations_monitor:4.4:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_operations_monitor:5.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_element_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_session_report_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
- cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*
Threat overview for CVE-2021-44790
Top countries where our scanners detected CVE-2021-44790
Top open port discovered on systems with this issue
80
IPs affected by CVE-2021-44790 8,852,654
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2021-44790!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2021-44790
13.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 96 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-44790
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-44790
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by:
- nvd@nist.gov (Secondary)
- security@apache.org (Primary)
References for CVE-2021-44790
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/
[SECURITY] Fedora 34 Update: httpd-2.4.53-1.fc34 - package-announce - Fedora Mailing-ListsThird Party Advisory
-
https://www.oracle.com/security-alerts/cpuapr2022.html
Oracle Critical Patch Update Advisory - April 2022Patch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/
[SECURITY] Fedora 35 Update: httpd-2.4.53-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpujan2022.html
Oracle Critical Patch Update Advisory - January 2022Patch;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20211224-0001/
December 2021 Apache HTTP Server Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2021/12/20/4
oss-security - CVE-2021-44790: Apache HTTP Server: Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlierMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202208-20
Apache HTTPD: Multiple Vulnerabilities (GLSA 202208-20) — Gentoo securityThird Party Advisory
-
http://seclists.org/fulldisclosure/2022/May/33
Full Disclosure: APPLE-SA-2022-05-16-4 Security Update 2022-004 CatalinaMailing List;Third Party Advisory
-
http://packetstormsecurity.com/files/171631/Apache-2.4.x-Buffer-Overflow.html
Apache 2.4.x Buffer Overflow ≈ Packet Storm
-
https://support.apple.com/kb/HT213256
About the security content of macOS Big Sur 11.6.6 - Apple SupportThird Party Advisory
-
https://support.apple.com/kb/HT213257
About the security content of macOS Monterey 12.4 - Apple SupportThird Party Advisory
-
https://www.tenable.com/security/tns-2022-01
[R1] Tenable.sc 5.20.0 Fixes Multiple Vulnerabilities - Security Advisory | Tenable®Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/
[SECURITY] Fedora 36 Update: httpd-2.4.53-1.fc36 - package-announce - Fedora Mailing-ListsThird Party Advisory
-
https://www.debian.org/security/2022/dsa-5035
Debian -- Security Information -- DSA-5035-1 apache2Third Party Advisory
-
http://seclists.org/fulldisclosure/2022/May/38
Full Disclosure: APPLE-SA-2022-05-16-2 macOS Monterey 12.4Mailing List;Third Party Advisory
-
http://seclists.org/fulldisclosure/2022/May/35
Full Disclosure: APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6Mailing List;Third Party Advisory
-
http://httpd.apache.org/security/vulnerabilities_24.html
httpd 2.4 vulnerabilities - The Apache HTTP Server ProjectVendor Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFSWOH4X77CV7AH7C4RMHUBDWKQDL4YH/
[SECURITY] Fedora 35 Update: httpd-2.4.52-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://support.apple.com/kb/HT213255
About the security content of Security Update 2022-004 Catalina - Apple SupportThird Party Advisory
-
https://www.tenable.com/security/tns-2022-03
[R1] Stand-alone Security Patch Available for Tenable.sc versions 5.16.0 to 5.19.1: Patch 202201.1 - Security Advisory | Tenable®Third Party Advisory
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