Vulnerability Name:

CVE-2022-23092 (CCN-233278)

Assigned:2022-08-09
Published:2022-08-09
Updated:2022-08-09
Summary:FreeBSD is vulnerable to a buffer overflow, caused by improper bounds checking by the lib9p component. By sending a specially-crafted RWALK message, a remote attacker could overwrite memory in the bhyve(8) process and execute arbitrary code in the context of the Capsicum sandbox on the system.
CVSS v3 Severity:7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2022-23092

Source: XF
Type: UNKNOWN
freebsd-cve202223092-bo(233278)

Source: CCN
Type: FreeBSD Security Advisory SA-22:12.lib9p
Missing bounds check in 9p message handling

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:freebsd:freebsd:13.0:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    freebsd freebsd 13.0 -