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