ISC BIND up to 9.9.4-72 on Red Hat buffer.c assertion

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability was found in ISC BIND up to 9.9.4-72 on Red Hat (Domain Name Software). It has been declared as problematic. This vulnerability affects an unknown functionality of the file buffer.c. The manipulation with an unknown input leads to a assertion vulnerability. The CWE definition for the vulnerability is CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. As an impact it is known to affect availability. CVE summarizes:

While backporting a feature for a newer branch of BIND9, RedHat introduced a path leading to an assertion failure in buffer.c:420. Affects RedHat versions bind-9.9.4-65.el7 -> bind-9.9.4-72.el7. No ISC releases are affected. Other packages from other distributions who made the same error may also be affected.

The bug was discovered 12/19/2018. The weakness was disclosed 10/30/2019 (Website). The advisory is available at access.redhat.com. This vulnerability was named CVE-2018-5742 since 01/17/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 41 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 121455 (Scientific Linux Security Update : bind on SL7.x x86_64), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Scientific Linux Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (121455).

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 5.9
CNA Vector (Internet Systems Consortium (ISC)): 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Assertion
CWE: CWE-617
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Nessus ID: 121455
Nessus Name: Scientific Linux Security Update : bind on SL7.x x86_64
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/17/2018 🔍
12/19/2018 +336 days 🔍
01/29/2019 +41 days 🔍
01/30/2019 +1 days 🔍
10/30/2019 +273 days 🔍
10/31/2019 +1 days 🔍
01/29/2024 +1551 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: access.redhat.com
Status: Not defined

CVE: CVE-2018-5742 (🔍)

Entryinfo

Created: 10/31/2019 06:06
Updated: 01/29/2024 19:14
Changes: 10/31/2019 06:06 (43), 10/31/2019 06:11 (24), 01/29/2024 19:14 (14)
Complete: 🔍

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