Improper input validation in Isc Dhcp
CVE-2011-0997
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.846 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.843 · newest: 0.846 · change: +0.003
Affected products
- Isc Dhcp — versions 3.0, 3.0.1, 3.0.2
- Canonical Ubuntu Linux — versions 6.06, 8.04, 9.10
- Debian Linux — versions 5.0, 6.0, 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/47176 (VDB Entry, Third Party Advisory, vdb-entry)
- www.vupen.com/english/advisories/2011/0886 (Permissions Required, vdb-entry)
- secunia.com/advisories/44103 (Third Party Advisory, third-party-advisory)
- www.redhat.com/support/errata/RHSA-2011-0840.html (vendor-advisory, Third Party Advisory)
- secunia.com/advisories/44037 (Third Party Advisory, third-party-advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.vupen.com/english/advisories/2011/0926 (Permissions Required, vdb-entry)
- marc.info/ (vendor-advisory, Mailing List, Third Party Advisory)
- secunia.com/advisories/44127 (Third Party Advisory, third-party-advisory)
- www.mandriva.com/security/advisories (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2011-0997?
- CVE-2011-0997 is a vulnerability in Isc Dhcp, classified under Improper Input Validation. Published 2011-04-08.
- Is CVE-2011-0997 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.