CVE-2017-3139 - Reachable Assertion

Severity

50%

Complexity

99%

Confidentiality

48%

A denial of service flaw was found in the way BIND handled DNSSEC validation. A remote attacker could use this flaw to make named exit unexpectedly with an assertion failure via a specially crafted DNS response.

A denial of service flaw was found in the way BIND handled DNSSEC validation. A remote attacker could use this flaw to make named exit unexpectedly with an assertion failure via a specially crafted DNS response.

CVSS 3.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Demo Examples

Reachable Assertion

CWE-617

In the excerpt below, an AssertionError (an unchecked exception) is thrown if the user hasn't entered an email address in an HTML form.


               
assert email != null;

Overview

First reported 5 years ago

2019-04-09 18:29:00

Last updated 5 years ago

2019-10-03 00:03:00

Affected Software

ISC BIND

Red Hat Enterprise Linux Server AUS 6.4

6.4

Red Hat Enterprise Linux Server Advanced mission critical Update Support (AUS) 6.5

6.5

Red Hat Enterprise Linux Server Telecommunications Update Service (TUS) 6.6

6.6

References

https://access.redhat.com/security/cve/cve-2017-3139

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1447743

Issue Tracking, Third Party Advisory

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