CVE-2017-16997 Detail
Current Description
elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the "./" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.
Source:
MITRE
View Analysis Description
Analysis Description
elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the "./" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.
Source:
MITRE
Severity
CVSS 3.x Severity and Metrics:
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Metrics:
Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C)
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID |
CWE Name |
Source |
| CWE-426 |
Untrusted Search Path |
NIST
|
Change History
5 change records found
- show changes
Modified Analysis -
4/26/2019 8:41:14 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:virtualization:4.0:*:*:*:*:*:*:* |
| Changed |
Reference Type |
https://access.redhat.com/errata/RHBA-2019:0327 No Types Assigned |
https://access.redhat.com/errata/RHBA-2019:0327 Third Party Advisory |
| Changed |
Reference Type |
https://access.redhat.com/errata/RHSA-2018:3092 No Types Assigned |
https://access.redhat.com/errata/RHSA-2018:3092 Third Party Advisory |
CVE Modified by MITRE -
4/24/2019 2:29:00 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://access.redhat.com/errata/RHBA-2019:0327 [No Types Assigned] |
CVE Modified by MITRE -
10/31/2018 6:29:07 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://access.redhat.com/errata/RHSA-2018:3092 [No Types Assigned] |
Initial Analysis -
1/5/2018 10:52:06 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:a:gnu:glibc:2.19:*:*:*:*:*:*:*
*cpe:2.3:a:gnu:glibc:2.20:*:*:*:*:*:*:*
*cpe:2.3:a:gnu:glibc:2.21:*:*:*:*:*:*:*
*cpe:2.3:a:gnu:glibc:2.22:*:*:*:*:*:*:*
*cpe:2.3:a:gnu:glibc:2.23:*:*:*:*:*:*:*
*cpe:2.3:a:gnu:glibc:2.25:*:*:*:*:*:*:*
*cpe:2.3:a:gnu:glibc:2.26:*:*:*:*:*:*:* |
| Added |
CVSS V2 |
|
(AV:N/AC:M/Au:N/C:C/I:C/A:C) |
| Added |
CVSS V3 |
|
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Added |
CWE |
|
CWE-426 |
| Changed |
Reference Type |
http://www.securityfocus.com/bid/102228 No Types Assigned |
http://www.securityfocus.com/bid/102228 Third Party Advisory, VDB Entry |
| Changed |
Reference Type |
https://bugs.debian.org/884615 No Types Assigned |
https://bugs.debian.org/884615 Issue Tracking, Mailing List, Patch, Third Party Advisory |
| Changed |
Reference Type |
https://sourceware.org/bugzilla/show_bug.cgi?id=22625 No Types Assigned |
https://sourceware.org/bugzilla/show_bug.cgi?id=22625 Issue Tracking, Patch, Third Party Advisory |
| Changed |
Reference Type |
https://sourceware.org/ml/libc-alpha/2017-12/msg00528.html No Types Assigned |
https://sourceware.org/ml/libc-alpha/2017-12/msg00528.html Issue Tracking, Patch, Third Party Advisory |
CVE Modified by MITRE -
1/3/2018 9:29:03 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/102228 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2017-16997
NVD Published Date:
12/17/2017
NVD Last Modified:
04/26/2019
|