CVE-2021-21702 — NULL Pointer Dereference in Group PHP

CWE-476 — NULL Pointer Dereference16 documents8 sources
Severity
7.5HIGHNVD
CNA5.3
EPSS
0.3%
top 49.32%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
PHP Group PHPPHPOracle Communications Diameter Signaling Router+1 more
Timeline
PublishedFeb 15
Latest updateMay 2

Description

In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would cause PHP to access a null pointer and thus cause a crash.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶NVDphp/php7.3.0 — 7.3.27+2
▶CVEListV5php_group/php7.3.x — 7.3.27+2

Also affects: Debian Linux 10.0, 9.0

Patches

Patch: www.oracle.com ↗Patch: www.oracle.com ↗

🔴Vulnerability Details

10
OSV
linux-xilinx-zynqmp vulnerabilities↗2025-05-02
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OSV
linux-azure-fips, linux-fips, linux-gcp-fips vulnerabilities↗2025-04-24
▶
OSV
linux-aws, linux-aws-5.4, linux-gcp-5.4, linux-iot vulnerabilities↗2025-04-24
▶
OSV
linux-aws-fips vulnerabilities↗2025-04-24
▶
OSV
linux, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4 vulnerabilities↗2025-04-24
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📋Vendor Advisories

5
Ubuntu
PHP vulnerabilities↗2021-07-13
▶
Ubuntu
PHP vulnerabilities↗2021-07-07
▶
Microsoft
Null Dereference in SoapClient↗2021-02-09
▶
Red Hat
php: NULL pointer dereference in SoapClient↗2021-01-26
▶
Debian
CVE-2021-21702: php7.4 - In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, wh...↗2021
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