NULL Pointer Dereference Affecting libcacard-tools package, versions <10:1.5.3-86.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-RHEL7-LIBCACARDTOOLS-5052656
  • published 26 Jul 2021
  • disclosed 17 Sep 2014

How to fix?

Upgrade RHEL:7 libcacard-tools to version 10:1.5.3-86.el7 or higher.
This issue was patched in RHSA-2015:0349.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcacard-tools package and not the libcacard-tools package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The sosendto function in slirp/udp.c in QEMU before 2.1.2 allows local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket.

CVSS Scores

version 3.1
Expand this section

NVD

4 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low
Expand this section

Red Hat

5 medium