CVE-2011-4868

UnknownEPSS 3.61%

Last modified

CVE-2011-4868 is a vulnerability of currently unknown severity. The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.. EPSS estimates a 3.61% chance of exploitation in the next 30 days.

Description

The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.

Metrics

EPSS Probability
3.61%

88.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
IscDhcp<= 4.2.3P1
IscDhcp3.0
IscDhcp3.0.1
IscDhcp3.0.2
IscDhcp3.0.3
IscDhcp3.0.4
IscDhcp3.0.5
IscDhcp3.0.6Rc1
IscDhcp3.1.0
IscDhcp4.0.0
IscDhcp4.1.0
IscDhcp4.2.0
IscDhcp4.2.1
IscDhcp4.2.2
IscDhcp4.2.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-4868?
The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.
How severe is CVE-2011-4868?
Severity scoring for CVE-2011-4868 is pending analysis. The EPSS model estimates a 3.61% probability of exploitation in the next 30 days.
How do I fix CVE-2011-4868?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-4868?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST