Vulnerability Name:

CVE-2019-14851 (CCN-198415)

Assigned:2019-08-10
Published:2020-10-01
Updated:2021-03-25
Summary:A denial of service vulnerability was discovered in nbdkit. A client issuing a certain sequence of commands could possibly trigger an assertion failure, causing nbdkit to exit. This issue only affected nbdkit versions 1.12.7, 1.14.1, and 1.15.1.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/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): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
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:3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
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 Type:CWE-617
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-14851

Source: CCN
Type: Red Hat Bugzilla – Bug 1757259
(CVE-2019-14851) - CVE-2019-14851 nbdkit: assertion failure by issuing commands in the wrong order

Source: MISC
Type: Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1757259

Source: XF
Type: UNKNOWN
nbdkit-cve201914851-dos(198415)

Source: CCN
Type: nbdkitGIT Repository
server: Fix regression for NBD_OPT_INFO before NBD_OPT_GO

Source: MISC
Type: Mailing List, Patch, Vendor Advisory
https://www.redhat.com/archives/libguestfs/2019-September/msg00272.html

Vulnerable Configuration:Configuration 1:
  • cpe:/a:nbdkit_project:nbdkit:*:*:*:*:*:*:*:* (Version < 1.12.7)
  • OR cpe:/a:nbdkit_project:nbdkit:*:*:*:*:*:*:*:* (Version >= 1.14.0 and < 1.14.1)
  • OR cpe:/a:nbdkit_project:nbdkit:*:*:*:*:*:*:*:* (Version >= 1.15.0 and < 1.15.1)

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2019148510000000
    V
    		CVE-2019-14851 on Ubuntu 19.04 (disco) - medium.
    2019-10-02
    oval:com.ubuntu.xenial:def:2019148510000000
    V
    		CVE-2019-14851 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-10-02
    BACK
    nbdkit_project nbdkit *
    nbdkit_project nbdkit *
    nbdkit_project nbdkit *