Vulnerability Name:

CCN-49361

Published:2009-03-23
Updated:2009-03-23
Summary:FreeBSD is vulnerable to a denial of service, caused by improper bounds checking by the kenv(2) system call. By allocating an overly large amount of memory, a local attacker could dump kernel environment variables and cause a kernel panic.
CVSS v3 Severity:4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
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): Low
CVSS v2 Severity:2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)
1.7 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: FreeBSD-EN-09:01.kenv
Kernel panic when dumping environment

Source: CCN
Type: BID-34198
FreeBSD 'kenv' Local Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
freebsd-kenv-dos(49361)

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:freebsd:freebsd:7.0:-:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:7.1:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    freebsd freebsd 7.0 -
    freebsd freebsd 7.1 -