National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-17942 Detail

Current Description

The convert_to_decimal function in vasnprintf.c in Gnulib before 2018-09-23 has a heap-based buffer overflow because memory is not allocated for a trailing '\0' character during %f processing.

Source:  MITRE
Description Last Modified:  10/03/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.8 HIGH
Vector: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 2.8


Attack Vector (AV): Network
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
https://github.com/coreutils/gnulib/commit/278b4175c9d7dd47c1a3071554aac02add3b3c35 Patch Third Party Advisory
https://lists.gnu.org/archive/html/bug-gnulib/2018-09/msg00107.html Exploit Mailing List Vendor Advisory
https://savannah.gnu.org/bugs/?func=detailitem&item_id=54686 Exploit Vendor Advisory

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:gnu:gnulib:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
2018-09-23


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-17942
NVD Published Date:
10/03/2018
NVD Last Modified:
11/20/2018