NULL Pointer Dereference Affecting ocaml-libnbd-devel package, versions <0:1.6.0-5.module+el8.8.0+20990+60c1530a


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.08% (33rd percentile)

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  • Snyk ID SNYK-ORACLE8-OCAMLLIBNBDDEVEL-5914447
  • published 14 Sep 2023
  • disclosed 11 Jul 2023

How to fix?

Upgrade Oracle:8 ocaml-libnbd-devel to version 0:1.6.0-5.module+el8.8.0+20990+60c1530a or higher.
This issue was patched in ELSA-2023-5264.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ocaml-libnbd-devel package and not the ocaml-libnbd-devel 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. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service.

CVSS Scores

version 3.1
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NVD

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

7.5 high
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Red Hat

7.5 high