CVE-2017-16997

HIGH
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

http://www.securityfocus.com/bid/102228

https://access.redhat.com/errata/RHBA-2019:0327

https://access.redhat.com/errata/RHSA-2018:3092

https://bugs.debian.org/884615

https://sourceware.org/bugzilla/show_bug.cgi?id=22625

https://sourceware.org/ml/libc-alpha/2017-12/msg00528.html

Details

Source: MITRE

Published: 2017-12-18

Updated: 2020-10-15

Type: CWE-426

Risk Information

CVSS v2

Base Score: 9.3

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 8.6

Severity: HIGH

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (20 total)

IDNameProductFamilySeverity
147282NewStart CGSL MAIN 6.02 : glibc Multiple Vulnerabilities (NS-SA-2021-0053)NessusNewStart CGSL Local Security Checks
high
127214NewStart CGSL CORE 5.04 / MAIN 5.04 : glibc Multiple Vulnerabilities (NS-SA-2019-0040)NessusNewStart CGSL Local Security Checks
high
126294EulerOS 2.0 SP5 : glibc (EulerOS-SA-2019-1667)NessusHuawei Local Security Checks
high
124889EulerOS Virtualization for ARM 64 3.0.1.0 : glibc (EulerOS-SA-2019-1386)NessusHuawei Local Security Checks
high
124749EulerOS Virtualization 2.5.4 : glibc (EulerOS-SA-2019-1371)NessusHuawei Local Security Checks
high
123725EulerOS Virtualization 2.5.3 : glibc (EulerOS-SA-2019-1257)NessusHuawei Local Security Checks
high
121907Photon OS 2.0: Glibc PHSA-2018-2.0-0011-(a)NessusPhotonOS Local Security Checks
high
121798Photon OS 1.0: Glibc PHSA-2018-1.0-0098-(a)NessusPhotonOS Local Security Checks
high
119468Amazon Linux AMI : glibc (ALAS-2018-1109)NessusAmazon Linux Local Security Checks
high
119182Scientific Linux Security Update : glibc on SL7.x x86_64 (20181030)NessusScientific Linux Local Security Checks
high
118992CentOS 7 : glibc (CESA-2018:3092)NessusCentOS Local Security Checks
high
118527RHEL 7 : glibc (RHSA-2018:3092)NessusRed Hat Local Security Checks
critical
111910Photon OS 1.0: Glibc / Ruby PHSA-2018-1.0-0098-(a) (deprecated)NessusPhotonOS Local Security Checks
high
111281Photon OS 2.0 : ruby / glibc (PhotonOS-PHSA-2018-2.0-0011-(a)) (deprecated)NessusPhotonOS Local Security Checks
high
108822GLSA-201804-02 : glibc: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
106281Fedora 26 : glibc (2018-8e27ad96ed)NessusFedora Local Security Checks
critical
106279Fedora 27 : glibc (2018-7714b514e2)NessusFedora Local Security Checks
high
106134Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : eglibc, glibc vulnerabilities (USN-3534-1)NessusUbuntu Local Security Checks
critical
106059openSUSE Security Update : glibc (openSUSE-2018-30)NessusSuSE Local Security Checks
critical
106044SUSE SLED12 / SLES12 Security Update : glibc (SUSE-SU-2018:0074-1)NessusSuSE Local Security Checks
critical