Vulnerability Name:

CCN-221568

Published:2021-02-17
Updated:2021-02-17
Summary:systemd is vulnerable to a denial of service, caused by a heap-double-free in mfree, related to src/basic/alloc-util.h. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a denial of service.
CVSS v3 Severity:6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/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): Local
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:4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Consequences:Denial of Service
References:Source: XF
Type: UNKNOWN
systemd-mfree-dos(221568)

Source: CCN
Type: systemd GIT Repository
basic/alloc-util: also reset the cleaned-up variable in freep()

Source: CCN
Type: WhiteSource Vulnerability Database
WS-2021-0187

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:systemd_project:systemd:248:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    systemd_project systemd 248 -