Description
In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes.
References (7)
Core 7
Core References
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2020/dsa-4717
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2020/dsa-4719
Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpuoct2020.html
Exploit, Vendor Advisory x_refsource_confirm
https://bugs.php.net/bug.php?id=79465
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200504-0001/
Not Applicable, Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpuApr2021.html
Patch, Third Party Advisory x_refsource_confirm
https://www.tenable.com/security/tns-2021-14
Scores
CVSS v3
7.5
EPSS
0.0998
EPSS Percentile
93.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-196
CWE-125
Status
published
Products (5)
debian/debian_linux
9.0
debian/debian_linux
10.0
oracle/communications_diameter_signaling_router
8.0.0.0 - 8.4.0.5
php/php
7.2.0 - 7.2.30
tenable/tenable.sc
< 5.19.0
Published
Apr 27, 2020
Tracked Since
Feb 18, 2026