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BIT-LIBPHP-2021-21708 UAF due to php_filter_float() failing

🗓️ 11 Aug 2025 13:53:33Reported by GoogleType 
osv
 osv🔗 osv.dev👁 5 Views

UAF in php_filter_float with FILTER_VALIDATE_FLOAT min/max; affects PHP; may crash and enable RCE.

Related
Refs
ReporterTitlePublishedViews
Family
ALT Linux		Security fix for the ALT Linux 10 package php8.0 version 8.0.16-alt1
28 Feb 202200:00
–altlinux
ALT Linux		Security fix for the ALT Linux 10 package php7 version 7.4.28-alt1
1 Mar 202200:00
–altlinux
ALT Linux		Security fix for the ALT Linux 10 package php8.1 version 8.1.3-alt1
28 Feb 202200:00
–altlinux
ALT Linux		Security fix for the ALT Linux 10 package php8.2 version 8.1.3-alt1
19 Feb 202200:00
–altlinux
IBM Security Bulletins		Security Bulletin: Vulnerabilities in PHP may affect IBM Spectrum Sentinel Anomaly Scan Engine (CVE-2021-21703, CVE-2021-21708, CVE-2021-21707, CVE-2022-31629, CVE-2022-31628)
16 Dec 202217:01
–ibm
Tenable Nessus		Amazon Linux 2022 : php, php-bcmath, php-cli (ALAS2022-2022-073)
6 Sep 202200:00
–nessus
Tenable Nessus		Amazon Linux 2022 : php, php-bcmath, php-cli (ALAS2022-2022-085)
6 Sep 202200:00
–nessus
Tenable Nessus		Amazon Linux 2 : php (ALASPHP8.0-2023-007)
13 Sep 202300:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0018: php:7.4 (ALINUX3-SA-2023:0018)
14 May 202500:00
–nessus
Tenable Nessus		AlmaLinux 8 : php:8.0 (ALSA-2022:7624)
14 Nov 202200:00
–nessus
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11 Aug 2025 15:13Current
6.9Medium risk
Vulners AI Score6.9
CVSS 26.8
CVSS 3.18.2 - 9.8
EPSS0.03002
use after freefilter validate floatmemory corruptionremote code executionmin max limitsaffected versions
5