Vulnerability Name:

CVE-2022-0934 (CCN-235005)

Assigned:2022-03-28
Published:2022-03-28
Updated:2023-03-07
Summary:A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): Low
7.5 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:6.4 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-416
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2022-0934

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: CCN
Type: Red Hat Bugzilla - Bug 2057075
(CVE-2022-0934) - CVE-2022-0934 dnsmasq: Heap use after free in dhcp6_no_relay

Source: secalert@redhat.com
Type: Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com

Source: XF
Type: UNKNOWN
dnsmasq-cve20220934-dos(235005)

Source: secalert@redhat.com
Type: Mailing List, Vendor Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Broken Link
secalert@redhat.com

Source: CCN
Type: dnsmasq.git
Fix write-after-free error in DHCPv6 code. CVE-2022-0934 refers.

Source: CCN
Type: Mend Vulnerability Database
CVE-2022-0934

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*
  • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*
  • Configuration RedHat 3:
  • cpe:/a:redhat:enterprise_linux:9:*:*:*:*:*:*:*
  • Configuration RedHat 4:
  • cpe:/a:redhat:enterprise_linux:9::appstream:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:dnsmasq:dnsmasq:2.0:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:7484
    P
    dnsmasq-2.86-150400.14.3 on GA media (Moderate)
    2023-06-12
    oval:com.redhat.rhsa:def:20228070
    P
    RHSA-2022:8070: dnsmasq security and bug fix update (Moderate)
    2022-11-15
    oval:com.redhat.rhsa:def:20227633
    P
    RHSA-2022:7633: dnsmasq security and bug fix update (Moderate)
    2022-11-08
    oval:org.opensuse.security:def:2909
    P
    dnsmasq-2.86-150400.14.3 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:94539
    P
    dnsmasq-2.86-150400.14.3 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:101589
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:119188
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:42267
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:118691
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:858
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:119378
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:42369
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:118881
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:119563
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:119069
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:42177
    P
    Security update for dnsmasq (Important)
    2022-04-22
    oval:org.opensuse.security:def:125697
    P
    Security update for dnsmasq (Important)
    2022-04-21
    oval:org.opensuse.security:def:6014
    P
    Security update for dnsmasq (Important)
    2022-04-21
    oval:org.opensuse.security:def:126863
    P
    Security update for dnsmasq (Important)
    2022-04-21
    oval:org.opensuse.security:def:127260
    P
    Security update for dnsmasq (Important)
    2022-04-21
    BACK
    dnsmasq dnsmasq 2.0