vulnerability
Red Hat: CVE-2017-16997: Moderate: glibc security, bug fix, and enhancement update (RHSA-2018:3092)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | 2017-12-17 | 2018-10-31 | 2021-03-03 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
2017-12-17
Added
2018-10-31
Modified
2021-03-03
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.
Solution(s)
redhat-upgrade-glibcredhat-upgrade-glibc-commonredhat-upgrade-glibc-debuginforedhat-upgrade-glibc-debuginfo-commonredhat-upgrade-glibc-develredhat-upgrade-glibc-headersredhat-upgrade-glibc-staticredhat-upgrade-glibc-utilsredhat-upgrade-nscd
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