Loop with Unreachable Exit Condition ('Infinite Loop') Affecting swtpm-tools package, versions <0:0.7.0-4.20211109gitb79fd91.module+el8.9.0+90052+d3bf71d8


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.16% (53rd percentile)

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  • Snyk ID SNYK-ORACLE8-SWTPMTOOLS-5950000
  • published 8 Oct 2023
  • disclosed 13 Sep 2023

How to fix?

Upgrade Oracle:8 swtpm-tools to version 0:0.7.0-4.20211109gitb79fd91.module+el8.9.0+90052+d3bf71d8 or higher.
This issue was patched in ELSA-2024-2962.

NVD Description

Note: Versions mentioned in the description apply only to the upstream swtpm-tools package and not the swtpm-tools package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the inflate_buffer function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.

CVSS Scores

version 3.1
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NVD

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

4.9 medium
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Red Hat

6.5 medium