Rapid7 Vulnerability & Exploit Database

Huawei EulerOS: CVE-2022-2928: dhcp security update

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Huawei EulerOS: CVE-2022-2928: dhcp security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/07/2022
Created
12/10/2022
Added
12/09/2022
Modified
12/09/2022

Description

In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However, there is not a corresponding call to option_dereference() to decrement the refcount field. The function add_option() is only used in server responses to lease query packets. Each lease query response calls this function for several options, so eventually, the reference counters could overflow and cause the server to abort.

Solution(s)

  • huawei-euleros-2_0_sp8-upgrade-dhcp-client
  • huawei-euleros-2_0_sp8-upgrade-dhcp-common
  • huawei-euleros-2_0_sp8-upgrade-dhcp-libs
  • huawei-euleros-2_0_sp8-upgrade-dhcp-relay
  • huawei-euleros-2_0_sp8-upgrade-dhcp-server

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;