CVE-2021-21702
MEDIUM severity · CVSS 5.3 · CWE-476
5.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactLow
Exploit probability (EPSS)3%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://www.oracle.com/security-alerts/cpuoct2021.html ↗
Additional information
- NVD record
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch
- https://bugs.php.net/bug.php?id=80672Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00008.htmlAdvisory
- https://security.gentoo.org/glsa/202105-23Advisory
- https://security.netapp.com/advisory/ntap-20210312-0005/Advisory
- https://www.debian.org/security/2021/dsa-4856Advisory
- https://www.tenable.com/security/tns-2021-14Advisory