Multiple vulnerabilities in Apache Subversion

Published: 2022-04-12

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-28544 CVE-2022-24070
CWE-ID	CWE-200 CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Subversion Server applications / Frameworks for developing and running applications
Vendor	Apache Foundation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU62078

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-28544

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to exposure of the node "copyfrom" path copied from a protected location. A remote user can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Subversion: 1.10.0 - 1.14.1

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Use-after-free

EUVDB-ID: #VU62079

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24070

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within mod_dav_svn. A remote attacker can send specially crafted HTTP requests to the affected application and perform a denial of service (DoS) attack.