DirectoryIterator class silently truncates after a null byte
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 5 fixed, 5 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP DirectoryIterator class accepts filenames with embedded \0 byte and treats them as terminating at that byte. This could lead to security vulnerabilities, e.g. in applications checking paths that the code is allowed to access.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| PHP Group | PHP | 7.2.x to before 7.2.26; 7.3.x to before 7.3.13; 7.4.x to before 7.4.1 | 7.2.26, 7.3.13, 7.4.1 | Patch available | CNA |
- PHP VendorPHP Group Affected 7.2.x to before 7.2.26; 7.3.x to before 7.3.13; 7.4.x to before 7.4.1 Fixed in 7.2.26, 7.3.13, 7.4.1 Patch available CNA
CPE configurations NVD · 15
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | 7.2.0 – 7.2.26; 7.3.0 – 7.3.13 | Vulnerable | PHP |
| cpe:2.3:a:php:php:7.4.0:*:*:*:*:*:*:* | 7.4.0 | Vulnerable | PHP |
| cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | 30 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | 15.1 | Vulnerable | openSUSE |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* | 14.04 | Vulnerable | Canonical |
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:* Versions 7.2.0 – 7.2.26; 7.3.0 – 7.3.13 Vulnerable ·PHP
- cpe:2.3:a:php:php:7.4.0:*:*:*:*:*:*:* Versions 7.4.0 Vulnerable ·PHP
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
Show 5 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* | 19.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* | 19.10 | Vulnerable | Canonical |
| cpe:2.3:a:tenable:security_center:*:*:*:*:*:*:*:* | before 5.19.0 | Vulnerable | Tenable |
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* Versions 19.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Versions 19.10 Vulnerable ·Canonical
- cpe:2.3:a:tenable:security_center:*:*:*:*:*:*:*:* Versions before 5.19.0 Vulnerable ·Tenable
Remediation
- Fix · CNA PHP (PHP Group) Fixed in 7.2.26, 7.3.13, 7.4.1
Red Hat 2 advisories
- RHSA-2020:5275 Released 2020-12-01 · Red Hat rating Moderaterh-php73-php security, bug fix, and enhancement update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php73-php-7.3.20-1.el7, rh-php73-php-bcmath-7.3.20-1.el7, rh-php73-php-cli-7.3.20-1.el7 +26
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-php73-php-7.3.20-1.el7, rh-php73-php-bcmath-7.3.20-1.el7, rh-php73-php-cli-7.3.20-1.el7 +26
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-php73-php-7.3.20-1.el7, rh-php73-php-bcmath-7.3.20-1.el7, rh-php73-php-cli-7.3.20-1.el7 +26
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php73-php-7.3.20-1.el7, rh-php73-php-bcmath-7.3.20-1.el7, rh-php73-php-cli-7.3.20-1.el7 +26
- RHSA-2020:3662 Released 2020-09-08 · Red Hat rating Moderatephp:7.3 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) apcu-panel-5.1.17-1.module+el8.1.0+3189+a1bff096.noarch::php:7.3, libzip-1.5.2-1.module+el8.1.0+3189+a1bff096.aarch64::php:7.3, libzip-1.5.2-1.module+el8.1.0+3189+a1bff096.ppc64le::php:7.3 +47
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
PHP — FEDORA-2019-437d94e271
6 records Highest priority Priority MEDIUM 2 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2019-08265 mail() may release string with refcount==1 twicePriority MEDIUM 49
- TI-2019-08260 link() silently truncates after a null byte on WindowsPriority MEDIUM 41
- TI-2019-08266 Use-after-free in exif parsing under memory sanitizerPriority LOW 39
- Advisory ·
PHP — FEDORA-2019-a54a622670
6 records Highest priority Priority MEDIUM 2 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2019-08265 mail() may release string with refcount==1 twicePriority MEDIUM 49
- TI-2019-08260 link() silently truncates after a null byte on WindowsPriority MEDIUM 41
- TI-2019-08266 Use-after-free in exif parsing under memory sanitizerPriority LOW 39
Show 2 more groups
- Advisory ·
PHP — openSUSE-SU-2020:0080
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2019-08266 Use-after-free in exif parsing under memory sanitizerPriority LOW 39
- TI-2019-08263 Heap-buffer-overflow READ in exifPriority LOW 39
- TI-2019-08262 Buffer underflow in bc_shift_addsubPriority LOW 31
- Advisory ·
PHP — USN-4239-1
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2019-08266 Use-after-free in exif parsing under memory sanitizerPriority LOW 39
- TI-2019-08263 Heap-buffer-overflow READ in exifPriority LOW 39
- TI-2019-08262 Buffer underflow in bc_shift_addsubPriority LOW 31
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Software Collections | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2020:3662 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:5275 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) | Fixed | RHSA-2020:5275 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) | Fixed | RHSA-2020:5275 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:5275 |
Timeline
- 2026-10-02 Threatist record created from CVE-2019-11045
- 2026-10-03 Alias added: GHSA-jv88-p4rw-4m4h
References
Advisory 12
- [debian-lts-announce] 20191229 [SECURITY] [DLA 2050-1] php5 security update
- https://security.netapp.com/advisory/ntap-20200103-0002/
- FEDORA-2019-437d94e271
- FEDORA-2019-a54a622670
- USN-4239-1
- openSUSE-SU-2020:0080
- 20200218 [SECURITY] [DSA 4626-1] php7.3 security update
- DSA-4626
- DSA-4628
- 20200219 [SECURITY] [DSA 4628-1] php7.0 security update
- 20210116 Re: [SECURITY] [DSA 4628-1] php7.0 security update
- https://www.tenable.com/security/tns-2021-14
More PHP Group vulnerabilities
- TI-2024-04260 Argument Injection in PHP-CGI KEVCVSS 3.1CRITICAL 9.8
- TI-2026-78794 PHP remote code execution via stale global state KEVCVSS 4.0CRITICAL 9.2
- TI-2026-78793 Out-of-memory handling flaw in PHP allows remote code execution KEVCVSS 4.0CRITICAL 9.2
- TI-2024-01743 Command injection via array-ish $command parameter of proc_open() CVSS 3.1CRITICAL 9.4
- TI-2022-13555 PDO::quote() may return unquoted string CVSS 3.1CRITICAL 9.1
- TI-2024-10408 Reference counting in php_request_shutdown causes Use-After-Free CVSS 4.0CRITICAL 9.2
Sources
- CVE-2019-11045 · CVE Program
- CVE-2019-11045 · NVD
- FIRST EPSS
- GHSA-jv88-p4rw-4m4h · GitHub Advisory Database · CC BY 4.0
- CVE-2019-11045 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences