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Short Name |
DHCP:ISC-PRETTY-PRINT-BO |
|---|---|
Severity |
Major |
Recommended |
Yes |
Recommended Action |
Drop |
Category |
DHCP |
Keywords |
ISC DHCP dhclient pretty_print_option Stack Buffer Overflow |
Release Date |
2018/04/05 |
Update Number |
3053 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vmx-17.4+, vsrx-12.1+, vsrx3bsd-18.2+ |
DHCP: ISC DHCP dhclient pretty_print_option Stack Buffer Overflow
This detects attempt to exploit a stack-based buffer overflow vulnerability which has been reported in ISC DHCP dhclient. A remote attacker on the local network can exploit this vulnerability by sending a malicious response to a vulnerable client. Successful exploitation could result in the execution of arbitrary code under the context of the dhclient process.
Extended Description
Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0
Affected Products
- Isc dhcp 4.1.0
- Isc dhcp 4.1.1
- Isc dhcp 4.1.2
- Isc dhcp 4.1-esv
- Isc dhcp 4.2.0
- Isc dhcp 4.2.1
- Isc dhcp 4.2.2
- Isc dhcp 4.2.3
- Isc dhcp 4.2.4
- Isc dhcp 4.2.5
- Isc dhcp 4.2.6
- Isc dhcp 4.2.7
- Isc dhcp 4.3.0
- Isc dhcp 4.3.1
- Isc dhcp 4.3.2
- Isc dhcp 4.3.3
- Isc dhcp 4.3.5
- Isc dhcp 4.4.0
References
- CVE: CVE-2018-5732