Use of Insufficiently Random Values Affecting php81 package, versions <8.1.22-r0


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.05% (19th percentile)

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  • Snyk ID SNYK-ALPINE316-PHP81-5840696
  • published 4 Aug 2023
  • disclosed 22 Jul 2023

How to fix?

Upgrade Alpine:3.16 php81 to version 8.1.22-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php81 package and not the php81 package as distributed by Alpine. See How to fix? for Alpine:3.16 relevant fixed versions and status.

In PHP versions 8.0.* before 8.0.29, 8.1.* before 8.1.20, 8.2.* before 8.2.7 when using SOAP HTTP Digest Authentication, random value generator was not checked for failure, and was using narrower range of values than it should have. In case of random generator failure, it could lead to a disclosure of 31 bits of uninitialized memory from the client to the server, and it also made easier to a malicious server to guess the client's nonce.

CVSS Scores

version 3.1
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NVD

4.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    None
  • Availability (A)
    None
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SUSE

5.3 medium
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Red Hat

4.3 medium