National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-12020 Detail

Current Description

mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the "--status-fd 2" option. For example, the OpenPGP data might represent an original filename that contains line feed characters in conjunction with GOODSIG or VALIDSIG status codes.

Source:  MITRE
Description Last Modified:  06/08/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


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

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://openwall.com/lists/oss-security/2018/06/08/2 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/104450 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041051 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:2180 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2181 Third Party Advisory
https://dev.gnupg.org/T4012 Patch Vendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000425.html Mailing List Vendor Advisory
https://usn.ubuntu.com/3675-1/ Third Party Advisory
https://usn.ubuntu.com/3675-2/ Third Party Advisory
https://usn.ubuntu.com/3675-3/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4222 Third Party Advisory
https://www.debian.org/security/2018/dsa-4223 Third Party Advisory
https://www.debian.org/security/2018/dsa-4224 Third Party Advisory

Technical Details

Vulnerability Type (View All)

Change History

8 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-12020
NVD Published Date:
06/08/2018
NVD Last Modified:
08/01/2018