CVE-2021-21708
phpVulnerabilityCVSS 8.2PatchedPoC
A public proof-of-concept or exploit code is available, raising the risk of active exploitation. A fixed version is available (see the table below).
Recommended action: Update to the fixed version listed for your distribution using the native package manager.
Severity metrics
CVSS 3.1 : 8.2 HIGH · CVSS 2.0 : 6.8 MEDIUM
Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
Confidentiality impactNone
Integrity impactHigh
Availability impactLow
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Affected & fixed versions by distribution
Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.
| Distribution | Package | Affected | Fixed version | Status |
|---|---|---|---|---|
| Arch | php | 8.1.3-1 | 8.1.4-1 | fixed |
| SUSE:Linux Enterprise Module for Package Hub 15 SP3 | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Linux Enterprise Module for Web and Scripting 15 SP3 | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP2-BCL | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Manager Proxy 4.1 | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Manager Retail Branch Server 4.1 | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Manager Server 4.1 | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Enterprise Storage 7 | php7 | - | 7.4.6-3.35.1 | fixed |
| SUSE:Linux Enterprise Module for Legacy 15 SP4 | php7 | - | 7.4.33-150400.4.13.1 | fixed |
| openSUSE:Leap 15.4 | php7 | - | 7.4.33-150400.4.13.1 | fixed |
| SUSE:Linux Enterprise Module for Package Hub 15 SP3 | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| SUSE:Linux Enterprise Module for Web and Scripting 15 SP3 | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| SUSE:Linux Enterprise Server 15 SP2-BCL | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| SUSE:Manager Proxy 4.1 | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| SUSE:Manager Retail Branch Server 4.1 | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| SUSE:Manager Server 4.1 | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| SUSE:Enterprise Storage 7 | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| openSUSE:Leap 15.3 | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| openSUSE:Leap 15.4 | php7 | - | 7.4.33-150200.3.46.2 | fixed |
| openSUSE:Leap 15.3 | php7 | - | 7.4.6-3.35.1 | fixed |
| openSUSE:Tumbleweed | php7 | - | 7.4.28-1.1 | fixed |
| openSUSE:Tumbleweed | php8 | - | 8.1.3-1.1 | fixed |
| Red Hat:enterprise_linux:8::appstream | php | - | 0:8.0.20-2.module+el8.7.0+16187+bb5ab920 | fixed |
| Red Hat:enterprise_linux:8::appstream | php | - | 0:7.4.30-1.module+el8.7.0+15886+8e29b882 | fixed |
| Red Hat:enterprise_linux:9::appstream | php | - | 0:8.0.20-3.el9 | fixed |
| Red Hat:rhel_aus:8.6::appstream | php | - | 0:7.4.19-4.module+el8.6.0+22924+d3a53e75.1 | fixed |
| Red Hat:rhel_e4s:8.6::appstream | php | - | 0:7.4.19-4.module+el8.6.0+22924+d3a53e75.1 | fixed |
| Red Hat:rhel_tus:8.6::appstream | php | - | 0:7.4.19-4.module+el8.6.0+22924+d3a53e75.1 | fixed |
| Red Hat:rhel_aus:8.4::appstream | php | - | 0:7.4.6-5.module+el8.4.0+22918+4f86939b.1 | fixed |
| Red Hat:rhel_e4s:8.4::appstream | php | - | 0:7.4.6-5.module+el8.4.0+22918+4f86939b.1 | fixed |
| Red Hat:rhel_tus:8.4::appstream | php | - | 0:7.4.6-5.module+el8.4.0+22918+4f86939b.1 | fixed |