Vulnerability Name:

CVE-2019-18601 (CCN-170438)

Assigned:2019-10-22
Published:2019-10-22
Updated:2019-11-06
Summary:OpenAFS before 1.6.24 and 1.8.x before 1.8.5 is prone to denial of service from unserialized data access because remote attackers can make a series of VOTE_Debug RPC calls to crash a database server within the SVOTE_Debug RPC handler.
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
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-502
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-18601

Source: XF
Type: UNKNOWN
openafs-cve201918601-dos(170438)

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20191106 [SECURITY] [DLA 1982-1] openafs security update

Source: CCN
Type: OpenAFS Security Advisory 2019-003
database server crash from unserialized data access

Source: MISC
Type: Vendor Advisory
https://openafs.org/pages/security/OPENAFS-SA-2019-003.txt

Vulnerable Configuration:Configuration 1:
  • cpe:/a:openafs:openafs:*:*:*:*:*:*:*:* (Version < 1.6.24)
  • OR cpe:/a:openafs:openafs:*:*:*:*:*:*:*:* (Version >= 1.8.0 and < 1.8.5)

    • Configuration CCN 1:
  • cpe:/a:openafs:openafs:1.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:openafs:openafs:1.8.0:*:*:*:*:*:*:*
  • OR cpe:/a:openafs:openafs:1.6.23:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2019186010000000
    V
    		CVE-2019-18601 on Ubuntu 19.04 (disco) - untriaged.
    2019-10-29
    oval:com.ubuntu.bionic:def:2019186010000000
    V
    		CVE-2019-18601 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-10-29
    oval:com.ubuntu.xenial:def:2019186010000000
    V
    		CVE-2019-18601 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-10-29
    BACK
    openafs openafs *
    openafs openafs *
    openafs openafs 1.0.1
    openafs openafs 1.8.0
    openafs openafs 1.6.23