Use After Free Affecting bind-libs package, versions <32:9.8.2-0.62.rc1.el6_9.5


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    8.98% (95th percentile)

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  • Snyk ID SNYK-CENTOS6-BINDLIBS-2146651
  • published 26 Jul 2021
  • disclosed 16 Jan 2018

How to fix?

Upgrade Centos:6 bind-libs to version 32:9.8.2-0.62.rc1.el6_9.5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind-libs package and not the bind-libs package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

BIND was improperly sequencing cleanup operations on upstream recursion fetch contexts, leading in some cases to a use-after-free error that can trigger an assertion failure and crash in named. Affects BIND 9.0.0 to 9.8.x, 9.9.0 to 9.9.11, 9.10.0 to 9.10.6, 9.11.0 to 9.11.2, 9.9.3-S1 to 9.9.11-S1, 9.10.5-S1 to 9.10.6-S1, 9.12.0a1 to 9.12.0rc1.

CVSS Scores

version 3.1
Expand this section

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