CVE-2023-24021

2023-01-2000:00:00

ubuntu.com

modsecurity

web application firewall

buffer over-reads

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

0.002 Low

EPSS

Percentile

56.5%

JSON

Incorrect handling of ‘\0’ bytes in file uploads in ModSecurity before
2.9.7 may allow for Web Application Firewall bypasses and buffer over-reads
on the Web Application Firewall when executing rules that read the
FILES_TMP_CONTENT collection.

Bugs

<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1029329>

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchmodsecurity-apache< 2.9.2-1ubuntu0.1~esm1UNKNOWN
ubuntu20.04noarchmodsecurity-apache< 2.9.3-1ubuntu0.1UNKNOWN
ubuntu22.04noarchmodsecurity-apache< 2.9.5-1ubuntu0.1~esm1UNKNOWN
ubuntu16.04noarchmodsecurity-apache< 2.9.0-1ubuntu0.1~esm1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	modsecurity-apache	< 2.9.2-1ubuntu0.1~esm1	UNKNOWN
ubuntu	20.04	noarch	modsecurity-apache	< 2.9.3-1ubuntu0.1	UNKNOWN
ubuntu	22.04	noarch	modsecurity-apache	< 2.9.5-1ubuntu0.1~esm1	UNKNOWN
ubuntu	16.04	noarch	modsecurity-apache	< 2.9.0-1ubuntu0.1~esm1	UNKNOWN