CVE-2011-0997
The MITRE CVE dictionary describes this issue as:
dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and 4.1-ESV before 4.1-ESV-R2 allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script.
Find out more about CVE-2011-0997 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS v2 metrics
| Base Score | 7.9 |
|---|---|
| Base Metrics | AV:A/AC:M/Au:N/C:C/I:C/A:C |
| Access Vector | Adjacent Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | Complete |
| Integrity Impact | Complete |
| Availability Impact | Complete |
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 6 (dhcp) | RHSA-2011:0428 | 2011-04-08 |
| Red Hat Enterprise Linux 5 (dhcp) | RHSA-2011:0428 | 2011-04-08 |
| Red Hat Enterprise Linux 4 (dhcp) | RHSA-2011:0428 | 2011-04-08 |
| Red Hat Enterprise Linux Extended Lifecycle Support 3 (dhcp) | RHSA-2011:0840 | 2011-05-31 |
Acknowledgements
Red Hat would like to thank Sebastian Krahmer of the SuSE Security Team for reporting this issue.CVE description copyright © 2017, The MITRE Corporation