Executive Summary

Informations
Name CVE-2022-2928 First vendor Publication 2022-10-07
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2928

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 244
Os 1
Os 3

Sources (Detail)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
Source Url
CONFIRM https://kb.isc.org/docs/cve-2022-2928
GENTOO https://security.gentoo.org/glsa/202305-22
MLIST https://lists.debian.org/debian-lts-announce/2022/10/msg00015.html

Alert History

If you want to see full details history, please login or register.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Date Informations
2024-02-02 02:34:52
  • Multiple Updates
2024-02-01 12:26:55
  • Multiple Updates
2023-11-07 21:31:29
  • Multiple Updates
2023-09-05 13:29:18
  • Multiple Updates
2023-09-05 01:26:21
  • Multiple Updates
2023-09-02 13:27:28
  • Multiple Updates
2023-09-02 01:26:45
  • Multiple Updates
2023-08-12 13:33:57
  • Multiple Updates
2023-08-12 01:26:01
  • Multiple Updates
2023-08-11 13:25:39
  • Multiple Updates
2023-08-11 01:26:51
  • Multiple Updates
2023-08-06 13:23:29
  • Multiple Updates
2023-08-06 01:25:45
  • Multiple Updates
2023-08-04 13:23:53
  • Multiple Updates
2023-08-04 01:26:05
  • Multiple Updates
2023-07-14 13:23:54
  • Multiple Updates
2023-07-14 01:25:51
  • Multiple Updates
2023-05-03 17:27:40
  • Multiple Updates
2023-03-29 02:25:21
  • Multiple Updates
2023-03-28 12:25:59
  • Multiple Updates
2022-11-28 21:27:23
  • Multiple Updates
2022-11-22 00:27:27
  • Multiple Updates
2022-10-27 00:27:27
  • Multiple Updates
2022-10-18 09:27:19
  • Multiple Updates
2022-10-14 21:27:20
  • Multiple Updates
2022-10-13 21:27:17
  • Multiple Updates
2022-10-12 02:09:34
  • Multiple Updates
2022-10-12 02:08:03
  • Multiple Updates
2022-10-11 21:27:14
  • Multiple Updates
2022-10-11 13:27:32
  • Multiple Updates
2022-10-11 13:15:33
  • Multiple Updates
2022-10-11 13:13:58
  • Multiple Updates
2022-10-11 09:27:13
  • Multiple Updates
2022-10-08 02:13:52
  • Multiple Updates
2022-10-08 02:12:23
  • Multiple Updates
2022-10-07 17:27:12
  • Multiple Updates
2022-10-07 13:27:16
  • First insertion