CVE-2023-3824PHP Memory Corruption
In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE.
Published Aug 11, 2023 · Updated Sep 8, 2026 · Also known as BIT-libphp-2023-3824, BIT-php-2023-3824, BIT-php-min-2023-3824, DEBIAN-CVE-2023-3824, GHSA-jqcx-ccgc-xwhv, UBUNTU-CVE-2023-3824
Key Facts
Patch immediately- CVE-2023-3824 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting PHP, Debian Linux, Fedora (Fedoraproject) and 22 more products.
- It is exploited in the wild, listed in Industry KEV feed since May 6, 2024. No public exploit code is known.
- EPSS estimates a 22% probability of exploitation in the next 30 days.
- Fixed versions are available, including apache2-mod_php7 7.4.33-150200.3.60.1, apache2-mod_php7 7.4.33-150400.4.28.1, apache2-mod_php74 7.4.33-1.62.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
22%
Higher than 97.6% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
43/100
Publication score, see How it works
Exploitation Verdict
KEV listed
May 6, 2024
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
3
Reports of active use
Advisories And Exploit References
- advisoryhttps://www.cve.org/CVERecord?id=CVE-2023-3824
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2023-3824
- advisoryhttps://ubuntu.com/security/CVE-2023-3824
- advisoryRHSA-2023:5926
- advisoryRHSA-2023:5927
- advisoryRHSA-2024:0387
Description
In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | May 6, 2024 | n/a | Not reported |
Affected Products
1,295 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| PHPPHP | >= 8.0.0, >= 8.0.* | 8.0.30 |
| Debian LinuxDebian | 10.0 | n/a |
| FedoraFedoraproject | 38 | n/a |
| php81alpine | See advisory | 8.1.22-r0 |
| php8alpine | See advisory | 8.0.30-r0 |
Patched Releases
apache2-mod_php7
7.4.33-150200.3.60.1, 7.4.33-150400.4.28.1
apache2-mod_php74
7.4.33-1.62.1
apache2-mod_php8
8.0.30-150400.4.37.1
apcu-panel
5.1.18-1.module+el8.10.0+90472+f810484b, 5.1.20-1.module+el8.6.0+20568+84712317, 5.1.21-1.module+el9.1.0+20776+c1b960c0
libphp
8.0.30, 8.1.22, 8.2.9
libzip
1.6.1-1.module_el8.10.0+3935+28808425, 1.6.1-1.module+el8.10.0+1604+6558efc7, 1.6.1-1.module+el8.10.0+90472+f810484b, 1.7.3-1.module_el8.6.0+2739+efabdb8f, 1.7.3-1.module+el8.10.0+1911+f499711e, 1.7.3-1.module+el8.6.0+20568+84712317
libzip-devel
1.6.1-1.module+el8.10.0+90472+f810484b, 1.7.3-1.module+el8.6.0+20568+84712317
libzip-tools
1.6.1-1.module+el8.10.0+90472+f810484b, 1.7.3-1.module+el8.6.0+20568+84712317
PHP
0:8.0.30-1.el9_2, 5.4.16-46.amzn2.0.6, 7.4.33-2.module_el8.10.0+3935+28808425, 7.4.33-2.module+el8.10.0+1912+72767185, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30, 8.0.30-1.el9_2, 8.0.30-1.module_el8.8.0+3655+3335cff6, 8.0.30-1.module+el8.10.0+1605+02e07af7, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.22, 8.1.22-1, 8.1.27-1.module_el9.3.0+53+44872dd1, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0, 8.2.8-1, 8.2.9, 8.2.8
php-bcmath
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-cli
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-common
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-dba
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-dbg
7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-devel
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-embedded
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-enchant
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-ffi
7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-fpm
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-gd
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-gmp
7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-intl
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-json
7.4.33-2.module+el8.10.0+90472+f810484b
php-ldap
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
php-mbstring
5.4.16-46.amzn2.0.6, 7.4.33-2.module+el8.10.0+90472+f810484b, 8.0.30-1.el9_2, 8.0.30-1.module+el8.8.0+21196+6feda386, 8.1.27-1.module+el9.3.0+90130+7e4e1ce0
Timeline
Publicly disclosed
Aug 11, 2023
Added to Industry KEV feed
May 6, 2024
Last updated
Sep 8, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisorycve.org · CVERecord
- advisorysecurity-tracker.debian.org · CVE-2023-3824
- advisoryubuntu.com · CVE-2023-3824
- advisoryRHSA-2023:5926
- advisoryRHSA-2023:5927
FAQ
Common Questions.
In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE.
Affected: PHP versions >= 8.0.0, >= 8.0.*; Debian Linux versions 10.0; Fedora (Fedoraproject) versions 38, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since May 6, 2024.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including apache2-mod_php7 7.4.33-150200.3.60.1, apache2-mod_php7 7.4.33-150400.4.28.1, apache2-mod_php74 7.4.33-1.62.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2023-3824 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo