Access of Uninitialized Pointer Affecting qemu package, versions *


Severity

Recommended
0.0
low
0
10

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.05% (17th percentile)

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  • Snyk ID SNYK-UBUNTU1404-QEMU-1618011
  • published 17 Jun 2021
  • disclosed 15 Jun 2021

How to fix?

There is no fixed version for Ubuntu:14.04 qemu.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

CVSS Scores

version 3.1
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NVD

3.8 low
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    Low
  • Integrity (I)
    None
  • Availability (A)
    None
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SUSE

3.8 low
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Red Hat

3.8 low