Vulnerability Name:

CVE-2018-0493 (CCN-141314)

Assigned:2017-11-27
Published:2018-03-30
Updated:2018-05-21
Summary:remctld in remctl before 3.14, when an attacker is authorized to execute a command that uses the sudo option, has a use-after-free that leads to a daemon crash, memory corruption, or arbitrary command execution.
CVSS v3 Severity:7.2 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
6.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-416
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2018-0493

Source: XF
Type: UNKNOWN
remctl-cve20180493-code-exec(141314)

Source: CONFIRM
Type: Vendor Advisory
https://git.eyrie.org/?p=kerberos/remctl.git;a=commit;h=86c7e44090c988112a37589d2c7a94029eb5e641

Source: DEBIAN
Type: Third Party Advisory
DSA-4159

Source: CCN
Type: remctl 2018-04-01 Advisory
Use after free, double free

Source: CONFIRM
Type: Vendor Advisory
https://www.eyrie.org/~eagle/software/remctl/security/2018-04-01.html

Vulnerable Configuration:Configuration 1:
  • cpe:/a:eyrie:remctl:*:*:*:*:*:*:*:* (Version < 3.14)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:201804930000000
    V
    		CVE-2018-0493 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-04-03
    oval:com.ubuntu.artful:def:20180493000
    V
    		CVE-2018-0493 on Ubuntu 17.10 (artful) - untriaged.
    2018-04-03
    oval:com.ubuntu.xenial:def:20180493000
    V
    		CVE-2018-0493 on Ubuntu 16.04 LTS (xenial) - untriaged.
    2018-04-03
    oval:com.ubuntu.disco:def:201804930000000
    V
    		CVE-2018-0493 on Ubuntu 19.04 (disco) - medium.
    2018-04-03
    oval:com.ubuntu.bionic:def:20180493000
    V
    		CVE-2018-0493 on Ubuntu 18.04 LTS (bionic) - untriaged.
    2018-04-03
    oval:com.ubuntu.cosmic:def:201804930000000
    V
    		CVE-2018-0493 on Ubuntu 18.10 (cosmic) - untriaged.
    2018-04-03
    oval:com.ubuntu.cosmic:def:20180493000
    V
    		CVE-2018-0493 on Ubuntu 18.10 (cosmic) - untriaged.
    2018-04-03
    oval:com.ubuntu.bionic:def:201804930000000
    V
    		CVE-2018-0493 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-04-03
    oval:com.ubuntu.trusty:def:20180493000
    V
    		CVE-2018-0493 on Ubuntu 14.04 LTS (trusty) - untriaged.
    2018-04-03
    BACK
    eyrie remctl *
    debian debian linux 9.0