Debian update for modsecurity



| Updated: 2021-07-08
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-15598
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
 modsecurity (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU46766

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-15598

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources while performing global matching of regular expressions in a combination of the ModSecurity “capture” action. A remote attacker can send a specially crafted HTTP request to the server and perform a denial of service (DoS) attack.

Mitigation

Update modsecurity package to version 3.0.3-1+deb10u2.

Vulnerable software versions

modsecurity (Debian package): 3.0.3-1+deb10u1

CPE2.3 External links

https://www.debian.org/security/2020/dsa-4765


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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