Vulnerability Details : CVE-2017-16997
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.
Vulnerability category: File inclusion
Exploit prediction scoring system (EPSS) score for CVE-2017-16997
Probability of exploitation activity in the next 30 days: 0.08%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 35 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-16997
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
---|---|---|---|---|---|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
[email protected] |
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
[email protected] |
CWE ids for CVE-2017-16997
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The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control.Assigned by: [email protected] (Primary)
References for CVE-2017-16997
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https://access.redhat.com/errata/RHBA-2019:0327
Third Party Advisory
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https://access.redhat.com/errata/RHSA-2018:3092
Third Party Advisory
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https://sourceware.org/bugzilla/show_bug.cgi?id=22625
Issue Tracking;Patch;Third Party Advisory
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http://www.securityfocus.com/bid/102228
Third Party Advisory;VDB Entry
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https://sourceware.org/ml/libc-alpha/2017-12/msg00528.html
Issue Tracking;Patch;Third Party Advisory
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https://bugs.debian.org/884615
Issue Tracking;Mailing List;Patch;Third Party Advisory
Products affected by CVE-2017-16997
- 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:a:gnu:glibc:2.21:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.20:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.22:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.19:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.25:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.23:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.26:*:*:*:*:*:*:*