CVE-2021-28544: Apache Subversion SVN authz protected copyfrom paths regression

Published Apr 12, 2022
·
Updated

AMD. A memory corruption issue was addressed with improved input validation.

Other sources

Apache Subversion SVN authz protected copyfrom paths regression Subversion servers reveal 'copyfrom' paths that should be hidden according to configured path-based authorization (authz) rules. When a node has been copied from a protected location, users with access to the copy can see the 'copyfrom' path of the original. This also reveals the fact that the node was copied. Only the 'copyfrom' path is revealed; not its contents. Both httpd and svnserve servers are vulnerable.

APFS. The issue was addressed with improved memory handling.

— Apple

Apple Neural Engine. An integer overflow was addressed with improved input validation.

— Apple

Apple Neural Engine. An out-of-bounds read was addressed with improved bounds checking.

— Apple

Apple Neural Engine. The issue was addressed with improved memory handling.

— Apple

Credit

Evgeny Kotkov, visualsvn.com, Mickey Jin@@patch1t(Baidu Security), Ye Zhang@@co0py_Cat(Baidu Security), Mickey Jin@@patch1t(Trend Micro), Ferdous Saljooki@@malwarezoo(Jamf Software), an anonymous researcher, John Aakerblom@@jaakerblom, Zhipeng Huo@@R3dF09(Tencent Security Xuanwu Lab), Csaba Fitzl@@theevilbit(Offensive Security), Antonio Zekic@@antoniozekic, Daniel Lim Wee Soong(STAR Labs), Joshua Mason(Mandiant), Joshua Jones, Dohyun Lee@@l33d0hyun(SSD Secure Disclosure Labs), Korea Univ., Ivan Fratric(Google Project Zero), Mickey Jin@@patch1t, hjy79425575, Yiğit Can YILMAZ@@yilmazcanyigit, ABC Research s.r.o, Yinyi Wu@@3ndy1, ABC Research s.r.o., Dongzhuo Zhao(ADLab of Venustech), (Cyberpeace Tech Co), ZhaoHai(Cyberpeace Tech Co), Ltd., Xinru Chi(Pangu Lab), Tingting Yin(Tsinghua University), (Ant Group), Min Zheng(Ant Group), Hexhive (hexhive.epfl.ch)(China), NCNIPC(China), CVE-2022-32823, Pan ZhenPeng@@Peterpan0927, Kai Lu(Zscaler's ThreatLabz), Sreejith Krishnan R@@skr0x1c0, Jeffrey Paul (sneak.berlin), Joshua Mason @jhu.edu)@@josh, Xuxiang Yang@@another1024(Tencent Security Xuanwu Lab), Gordon Long(Computest Sector 7), Thijs Alkemade@@xnyhps(Computest Sector 7), Adam Chester(TrustedSec), Yuebin Sun@@yuebinsun2020(Tencent Security Xuanwu Lab), Binoy Chitale(Illinois at Chicago), MS student(Illinois at Chicago), Stony Brook University(Illinois at Chicago), Nick Nikiforakis(Illinois at Chicago), Associate Professor(Illinois at Chicago), Jason Polakis(Illinois at Chicago), University(Illinois at Chicago), Mir Masood Ali(Illinois at Chicago), PhD student(Illinois at Chicago), Chris Kanich(Illinois at Chicago), (Illinois at Chicago), Mohammad Ghasemisharif(Illinois at Chicago), PhD Candidate(Illinois at Chicago), P1umer@@p1umer, Q1IQ@@q1iqF, Matthias Keller (m-keller.com), afang@@afang5472, xmzyshypnc@@xmzyshypnc1, Manfred Paul@@_manfp(Trend Micro Zero Day Initiative), Jan Vojtesek(Avast Threat Intelligence team), Wang Yu(Cyberserval), Jeremy Legendre(MacEnhance), Mohamed Ghannam@@_simo36, Tommy Muir@@Muirey03, Natalie Silvanovich(Google Project Zero), Wojciech Reguła@@_r3ggi(SecuRing)

Affected Software

8 affected componentsFixes available
debian/subversion
1.10.4-1+deb10u31.14.1-3+deb11u11.14.2-4
Apple macOS Monterey<12.5
12.5
Apache subversion>=1.10.0<=1.14.1
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Fedoraproject Fedora=35
Fedoraproject Fedora=36
Apple macOS>=12.0<12.5

Remediation

Patch Available

https://subversion.apache.org/security/CVE-2021-28544-advisory.txt

Event History

Apr 12, 2022
CVE Published
via MITRE·05:50 PM
Data Sourced
via MITRE·05:50 PM
DescriptionWeakness
Jul 20, 2022
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Description

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is CVE-2021-28544?

CVE-2021-28544 refers to multiple issues in subversion that have been addressed through an update.

2

How can CVE-2021-28544 affect me?

If you are using subversion on macOS Monterey version 12.5 or earlier, you may be affected by CVE-2021-28544.

3

How do I mitigate the impact of CVE-2021-28544?

To mitigate the impact of CVE-2021-28544, update your subversion software to the latest version available.

4

Where can I find more information about CVE-2021-28544?

You can find more information about CVE-2021-28544 in the Apple security advisory at the following link: https://support.apple.com/en-us/HT213345

Company

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