National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2018-1000156 Detail

Current Description

GNU Patch version 2.7.6 contains an input validation vulnerability when processing patch files, specifically the EDITOR_PROGRAM invocation (using ed) can result in code execution. This attack appear to be exploitable via a patch file processed via the patch utility. This is similar to FreeBSD's CVE-2015-1418 however although they share a common ancestry the code bases have diverged over time.

Source:  MITRE
Description Last Modified:  04/06/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6

Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://rachelbythebay.com/w/2018/04/05/bangpatch/ Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1199 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1200 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2091
https://access.redhat.com/errata/RHSA-2018:2092
https://access.redhat.com/errata/RHSA-2018:2093
https://access.redhat.com/errata/RHSA-2018:2094
https://access.redhat.com/errata/RHSA-2018:2095
https://access.redhat.com/errata/RHSA-2018:2096
https://access.redhat.com/errata/RHSA-2018:2097
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=894667#19 Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/04/msg00013.html Third Party Advisory
https://savannah.gnu.org/bugs/index.php?53566 Vendor Advisory
https://twitter.com/kurtseifried/status/982028968877436928 Third Party Advisory
https://usn.ubuntu.com/3624-1/ Third Party Advisory
https://usn.ubuntu.com/3624-2/ Third Party Advisory

Technical Details

Vulnerability Type (View All)

Change History

5 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-1000156
NVD Published Date:
04/06/2018
NVD Last Modified:
06/28/2018