critical
9.1
CWE
190 787 119
Advisory Published
CVE Published
Updated

CVE-2022-22721: core: Possible buffer overflow with very large or unlimited LimitXMLRequestBody

First published: Mon Mar 14 2022(Updated: )

A flaw was found in httpd, where it incorrectly limits the value of the LimitXMLRequestBody option. This issue can lead to an integer overflow and later causes an out-of-bounds write.

Credit: CVE-2021-44224 CVE-2021-44790 CVE-2022-22719 CVE-2022-22720 CVE-2022-22721 Lockheed Martin Red Team an anonymous researcher Jeremy Brown Trend Micro Zero Day InitiativeMichael DePlante @izobashi Trend Micro Zero Day InitiativeQi Sun Trend MicroYe Zhang @co0py_Cat Baidu SecurityRobert Ai Trend MicroArsenii Kostromin (0x3c3e) Yonghwi Jin @jinmo123 TheoriLinus Henze Pinauten GmbHLiu Long Ant Security LightJack Dates RET2 Systems IncAntonio Zekic @antoniozekic Jeonghoon Shin Theori working with Trend Micro Zero Day InitiativePeter Nguyễn Vũ Hoàng @peternguyen14 STAR LabsNed Williamson Google Project Zero @gorelics BreakPoint BreakPointRon Masas BreakPointWojciech Reguła @_r3ggi SecuRingArsenii Kostromin (0x3c3e) MicrosoftJonathan Bar Or MicrosoftZhipeng Huo @R3dF09 Tencent Security Xuanwu LabYuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabMax Shavrick @_mxms the Google Security TeamZubair Ashraf CrowdstrikeCVE-2022-0778 CVE-2022-23308 Mickey Jin @patch1t @gorelics Peter Nguyễn Vũ Hoàng STAR LabsFelix Poulin-Belanger Antonio Cheong Yu Xuan YCISCQCVE-2021-4136 CVE-2021-4166 CVE-2021-4173 CVE-2021-4187 CVE-2021-4192 CVE-2021-4193 CVE-2021-46059 CVE-2022-0128 Heige KnownSec 404 TeamBo Qu Palo Alto NetworksScarlet Raine Wang Yu CyberservalCVE-2022-0530 Tavis Ormandy CVE-2021-45444 ABC Research s.r.o Jon Thompson EvolveIA) actae0n Blacksun Hackers Club working with Trend Micro Zero Day InitiativeAndrew Williams GoogleAvi Drissman Googlechenyuwang @mzzzz__ Tencent Security Xuanwu LabJordy Zomer @pwningsystems Paul Walker BuryNathaniel Ekoniak Ennate TechnologiesGergely Kalman @gergely_kalman Mandiant MandiantJoshua Mason MandiantRon Waisberg SecuRingan anonymous researcher SecuRing Perception PointRon Hass @ronhass7 Perception Pointryuzaki Chijin Zhou ShuiMuYuLin LtdTsinghua wingtecher lab Jeonghoon Shin TheoriSorryMybad @S0rryMybad Kunlun LabDongzhuo Zhao ADLab of Venustech security@apache.org

Affected SoftwareAffected VersionHow to fix
redhat/jbcs-httpd24-httpd<0:2.4.51-37.el8
0:2.4.51-37.el8
redhat/jbcs-httpd24-httpd<0:2.4.51-37.el7
0:2.4.51-37.el7
redhat/httpd<0:2.4.53-7.el9
0:2.4.53-7.el9
redhat/httpd24-httpd<0:2.4.34-23.el7.5
0:2.4.34-23.el7.5
redhat/httpd<2.4.53
2.4.53
Apple macOS Monterey<12.4
12.4
Apple macOS<11.6.6
11.6.6
macOS Catalina
Apache Http Server<=2.4.52
Fedora=34
Fedora=35
Fedora=36
Debian=9.0
Oracle Enterprise Manager Ops Center=12.4.0.0
Oracle HTTP Server=12.2.1.3.0
Oracle HTTP Server=12.2.1.4.0
Oracle Sun ZFS Storage Appliance Kit=8.8
Apple iOS and macOS>=10.15<10.15.7
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS=10.15.7-security_update_2021-002
Apple iOS and macOS=10.15.7-security_update_2021-003
Apple iOS and macOS=10.15.7-security_update_2021-004
Apple iOS and macOS=10.15.7-security_update_2021-005
Apple iOS and macOS=10.15.7-security_update_2021-006
Apple iOS and macOS=10.15.7-security_update_2021-007
Apple iOS and macOS=10.15.7-security_update_2021-008
Apple iOS and macOS=10.15.7-security_update_2022-001
Apple iOS and macOS=10.15.7-security_update_2022-002
Apple iOS and macOS=10.15.7-security_update_2022-003
Apple iOS and macOS>=11.0<11.6.6
Apple iOS and macOS>=12.0<12.4

Remedy

https://www.oracle.com/security-alerts/cpuapr2022.html

Remedy

Set the LimitXMLRequestBody option to a value smaller than 350MB. Setting it to 0 is not recommended as it will use a hard limit (depending on 32bit or 64bit systems) which may result in an overall system out-of-memory. The default configuration is not vulnerable to this flaw, see the statement above.

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2022-22721?

    CVE-2022-22721 is a vulnerability in Apache HTTP Server where an integer overflow occurs when LimitXMLRequestBody is set to allow request bodies larger than 350MB (defaults to 1M) on 32-bit systems, which can lead to out-of-bounds writes.

  • How does CVE-2022-22721 affect Apache HTTP Server?

    CVE-2022-22721 affects Apache HTTP Server version 2.4.52 and earlier.

  • What is the severity of CVE-2022-22721?

    CVE-2022-22721 has a severity rating of high (7).

  • How can I fix CVE-2022-22721?

    To fix CVE-2022-22721, update Apache HTTP Server to version 2.4.53 or later.

  • Where can I find more information about CVE-2022-22721?

    You can find more information about CVE-2022-22721 at the following references: [Link 1](https://support.apple.com/en-us/HT213257), [Link 2](https://support.apple.com/en-us/HT213255), [Link 3](https://support.apple.com/en-us/HT213256).

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