Huawei EulerOS: Security Advisory for php (EulerOS-SA-2021-2479)

Published: 2021-09-24 02:24:28
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:



severity_date=2021-09-24 02:24:15 +0000 (Fri, 24 Sep 2021)

The remote host is missing an update for the Huawei EulerOS 'php' Linux Distribution Package(s) announced via the EulerOS-SA-2021-2479 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
Several flaws has been found in php. The pdo_firebase module does not check the length of the server version string in a response packet causing a stack buffer overflow, does not verify the data and uses the wrong type to cast length leading to a crash, and does not validate the response before calculation of the exec procedure leading to a crash. The highest threat from this vulnerability is to system availability.(CVE-2021-21704) A flaw was found in php. Currently, php's FILTER_VALIDATE_URL check doesn't recognize some non-compliant RFC 3986 URLs and returns them as valid. This flaw allows an attacker to craft URLs, which depending on how the URL filter checking is used on the application side, lead to Server Side Request Forgery. This issue presents an integrity risk for the application, as eventually, the attacker can manipulate resources that shouldn't be fully available for users.(CVE-2021-21705)

Affected Versions:
'php' Linux Distribution Package(s) on Huawei EulerOS V2.0SP8.

Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)


CVSS Score
Huawei EulerOS Local Security Checks

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