Vulnerability in Isc Dhcp
CVE-2022-2928
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_dere…
EPSS: 0.007 (46.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Isc Dhcp — versions 4.4.0 through versions before 4.4.3-P1, 4.1 ESV 4.1-ESV-R1 through versions before 4.1-ESV-R16-P1
Public proof-of-concept exploits
References
- kb.isc.org/docs/cve-2022-2928
- [debian-lts-announce] 20221010 [SECURITY] [DLA 3146-1] isc-dhcp security update (mailing-list)
- FEDORA-2022-f5a45757df (vendor-advisory)
- FEDORA-2022-9ca9a94e28 (vendor-advisory)
- FEDORA-2022-c4f274a54f (vendor-advisory)
- GLSA-202305-22 (vendor-advisory)
Frequently asked questions
- What is CVE-2022-2928?
- CVE-2022-2928 is a medium-severity vulnerability in Isc Dhcp. CVSS score: 6.5/10. Published 2022-10-07.
- How severe is CVE-2022-2928?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2022-2928 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.