Vulnerability Details : CVE-2020-7065
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-7065
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*
Threat overview for CVE-2020-7065
Top countries where our scanners detected CVE-2020-7065
Top open port discovered on systems with this issue
80
IPs affected by CVE-2020-7065 79,692
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2020-7065!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2020-7065
0.50%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-7065
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
|
7.4
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H |
2.2
|
5.2
|
PHP Group |
CWE ids for CVE-2020-7065
-
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Assigned by: security@php.net (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-7065
-
https://www.tenable.com/security/tns-2021-14
[R1] Tenable.sc 5.19.0 Fixes Multiple Third-party Vulnerabilities - Security Advisory | Tenable®Third Party Advisory
-
https://www.debian.org/security/2020/dsa-4719
Debian -- Security Information -- DSA-4719-1 php7.3Third Party Advisory
-
https://usn.ubuntu.com/4330-2/
USN-4330-2: PHP vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/4330-1/
USN-4330-1: PHP vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://bugs.php.net/bug.php?id=79371
PHP :: Sec Bug #79371 :: mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_fullExploit;Issue Tracking;Patch;Vendor Advisory
-
https://www.php.net/ChangeLog-7.php#7.4.4
PHP: PHP 7 ChangeLogRelease Notes;Vendor Advisory
-
https://security.netapp.com/advisory/ntap-20200403-0001/
March 2020 PHP Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://www.oracle.com/security-alerts/cpuoct2021.html
Oracle Critical Patch Update Advisory - October 2021Patch;Third Party Advisory
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