Public Date:
1321866: CVE-2016-3075 glibc: Stack overflow in nss_dns_getnetbyname_r
A stack overflow vulnerability was found in _nss_dns_getnetbyname_r. On systems with nsswitch configured to include "networks: dns" with a privileged or network-facing service that would attempt to resolve user-provided network names, an attacker could provide an excessively long network name, resulting in stack corruption and code execution.

Find out more about CVE-2016-3075 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 5.8
Base Metrics AV:N/AC:H/Au:M/C:P/I:P/A:C
Access Vector Network
Access Complexity High
Authentication Multiple
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Complete

CVSS v3 metrics

CVSS3 Base Score 7
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Impact Low
Availability Impact High

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 7 (glibc) RHSA-2016:2573 2016-11-03

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 compat-glibc Will not fix
Red Hat Enterprise Linux 6 compat-glibc Will not fix
Red Hat Enterprise Linux 6 glibc Will not fix
Red Hat Enterprise Linux 5 compat-glibc Will not fix
Red Hat Enterprise Linux 5 glibc Will not fix


This issue was discovered by Florian Weimer (Red Hat).

Last Modified

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