CVE-2023-3823

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Source
https://nvd.nist.gov/vuln/detail/CVE-2023-3823
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-3823.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-3823
Aliases
Related
Published
2023-08-11T06:15:09Z
Modified
2024-09-18T03:26:42.807815Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

In PHP versions 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8 various XML functions rely on libxml global state to track configuration variables, like whether external entities are loaded. This state is assumed to be unchanged unless the user explicitly changes it by calling appropriate function. However, since the state is process-global, other modules - such as ImageMagick - may also use this library within the same process, and change that global state for their internal purposes, and leave it in a state where external entities loading is enabled. This can lead to the situation where external XML is parsed with external entities loaded, which can lead to disclosure of any local files accessible to PHP. This vulnerable state may persist in the same process across many requests, until the process is shut down. 

References

Affected packages

Debian:11 / php7.4

Package

Name
php7.4
Purl
pkg:deb/debian/php7.4?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.4.33-1+deb11u5

Affected versions

7.*

7.4.21-1+deb11u1
7.4.25-1+deb11u1
7.4.26-1
7.4.28-1+deb11u1
7.4.30-1+deb11u1
7.4.33-1+deb11u1
7.4.33-1+deb11u3
7.4.33-1+deb11u4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / php8.2

Package

Name
php8.2
Purl
pkg:deb/debian/php8.2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.2.18-1~deb12u1

Affected versions

8.*

8.2.5-2
8.2.7-1~deb12u1
8.2.7-1
8.2.10-1
8.2.10-2
8.2.12-1
8.2.16-1
8.2.16-2
8.2.17-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / php8.2

Package

Name
php8.2
Purl
pkg:deb/debian/php8.2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.2.10-1

Affected versions

8.*

8.2.5-2
8.2.7-1~deb12u1
8.2.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/php/php-src

Affected ranges

Type
GIT
Repo
https://github.com/php/php-src
Events
Introduced
5dc92c2117cafc61daaaaa240fd46c3ac33872a4
Fixed
8213daa932be1c2ae04726233e4e56e5df63980e