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glibc: realpath() buffer underflow when getcwd() returns relative path allows privilege escalation

🗓️ 10 Apr 2018 08:47:21Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Glibc realpath underflow with relative getcwd path allows writing before the buffer and possible code execution (2.26 and earlier).

Related
Packages
Refs
ReporterTitlePublishedViews
Family
0day.today		glibc - realpath() Privilege Escalation Exploit
13 Jun 201800:00
–zdt
IBM Security Bulletins		Security Bulletin: IBM BladeCenter Advanced Management Module (AMM) is affected by vulnerabilities in GNU C Library
30 Jul 201822:39
–ibm
IBM Security Bulletins		Security Bulletin: Public disclosed GNU glibc vulnerabilities used by IBM OS Images for RedHat Linux in IBM PureApplication Systems (CVE-2017-16997 CVE-2018-1000001)
25 Jan 201912:20
–ibm
IBM Security Bulletins		Security Bulletin: IBM Dynamic System Analysis (DSA) Preboot is affected by vulnerabilities in cURL, DHCP and GNU C Library
7 Dec 202322:31
–ibm
IBM Security Bulletins		Security Bulletin: Vyatta 5600 vRouter Software Patches - Release 1801-za
25 Jul 201915:25
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in glibc affect PowerKVM
26 Sep 201817:55
–ibm
IBM Security Bulletins		Security Bulletin: IBM Integrated Management Module II (IMM2) is affected by vulnerabilities in GNU C Library
7 Dec 202322:31
–ibm
IBM Security Bulletins		Security Bulletin: IBM Flex System Chassis Management Module (CMM) is affected by vulnerabilties in GNU C Library
7 Dec 202322:31
–ibm
IBM Security Bulletins		Security Bulletin: IBM QRadar Network Security is affected by GNU C library (glibc) vulnerabilities
25 Jul 201814:25
–ibm
IBM Security Bulletins		Security Bulletin: IBM Security Proventia Network Active Bypass is affected by glibc vulnerabilities (CVE-2018-1000001, CVE-2017-16997, CVE-2017-1000408, CVE-2017-1000409, CVE-2017-17426)
29 Aug 201803:18
–ibm
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7aarch64glibc0:2.17-222.el7glibc-0:2.17-222.el7.aarch64.rpm
Red Hat Enterprise Linux7ppcglibc0:2.17-222.el7glibc-0:2.17-222.el7.ppc.rpm
Red Hat Enterprise Linux7ppc64glibc0:2.17-222.el7glibc-0:2.17-222.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64leglibc0:2.17-222.el7glibc-0:2.17-222.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390glibc0:2.17-222.el7glibc-0:2.17-222.el7.s390.rpm
Red Hat Enterprise Linux7s390xglibc0:2.17-222.el7glibc-0:2.17-222.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64glibc0:2.17-222.el7glibc-0:2.17-222.el7.x86_64.rpm
Red Hat Enterprise Linux7anyglibc0:2.17-222.el7.i686glibc-0:2.17-222.el7.i686.noarch.rpm
Red Hat Enterprise Linux7aarch64glibc-common0:2.17-222.el7glibc-common-0:2.17-222.el7.aarch64.rpm
Red Hat Enterprise Linux7ppc64glibc-common0:2.17-222.el7glibc-common-0:2.17-222.el7.ppc64.rpm
Rows per page

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25 Jun 2026 10:51Current
7.6High risk
Vulners AI Score7.6
CVSS 27.2
CVSS 37.8
EPSS0.13614
CWE-122
GNU C libraryrealpath underflowget current directorybuffer underflowcode executionversion two twenty six
4