CVE-2018-11236

CRITICAL
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

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.

References

http://www.securityfocus.com/bid/104255

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

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

https://security.netapp.com/advisory/ntap-20190329-0001/

https://security.netapp.com/advisory/ntap-20190401-0001/

https://sourceware.org/bugzilla/show_bug.cgi?id=22786

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5460617d1567657621107d895ee2dd83bc1f88f2

https://usn.ubuntu.com/4416-1/

https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

Details

Source: MITRE

Published: 2018-05-18

Updated: 2020-08-24

Type: CWE-787

Risk Information

CVSS v2

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

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

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL

Tenable Plugins

View all (29 total)

IDNameProductFamilySeverity
147282NewStart CGSL MAIN 6.02 : glibc Multiple Vulnerabilities (NS-SA-2021-0053)NessusNewStart CGSL Local Security Checks
high
138166Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : GNU C Library vulnerabilities (USN-4416-1)NessusUbuntu Local Security Checks
critical
127214NewStart CGSL CORE 5.04 / MAIN 5.04 : glibc Multiple Vulnerabilities (NS-SA-2019-0040)NessusNewStart CGSL Local Security Checks
high
125004EulerOS Virtualization 3.0.1.0 : glibc (EulerOS-SA-2019-1551)NessusHuawei Local Security Checks
high
124889EulerOS Virtualization for ARM 64 3.0.1.0 : glibc (EulerOS-SA-2019-1386)NessusHuawei Local Security Checks
high
123852EulerOS Virtualization 2.5.3 : glibc (EulerOS-SA-2019-1166)NessusHuawei Local Security Checks
critical
123228openSUSE Security Update : glibc (openSUSE-2019-539)NessusSuSE Local Security Checks
critical
122708EulerOS Virtualization 2.5.2 : glibc (EulerOS-SA-2019-1086)NessusHuawei Local Security Checks
critical
122171EulerOS 2.0 SP3 : glibc (EulerOS-SA-2019-1024)NessusHuawei Local Security Checks
critical
121962Photon OS 2.0: Glibc PHSA-2018-2.0-0066NessusPhotonOS Local Security Checks
critical
121856Photon OS 1.0: Glibc PHSA-2018-1.0-0159NessusPhotonOS Local Security Checks
critical
120053SUSE SLED15 / SLES15 Security Update : glibc (SUSE-SU-2018:1991-1)NessusSuSE Local Security Checks
critical
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
118432EulerOS Virtualization 2.5.0 : glibc (EulerOS-SA-2018-1344)NessusHuawei Local Security Checks
critical
118420EulerOS Virtualization 2.5.1 : glibc (EulerOS-SA-2018-1332)NessusHuawei Local Security Checks
critical
118259SUSE SLES12 Security Update : glibc (SUSE-SU-2018:1562-2)NessusSuSE Local Security Checks
critical
117733EulerOS 2.0 SP2 : glibc (EulerOS-SA-2018-1289)NessusHuawei Local Security Checks
critical
111953Photon OS 2.0: Glibc PHSA-2018-2.0-0066 (deprecated)NessusPhotonOS Local Security Checks
high
111942Photon OS 1.0: Glibc PHSA-2018-1.0-0159 (deprecated)NessusPhotonOS Local Security Checks
high
111663SUSE SLES11 Security Update : glibc (SUSE-SU-2018:2302-1)NessusSuSE Local Security Checks
critical
111547SUSE SLES12 Security Update : glibc (SUSE-SU-2018:2187-1)NessusSuSE Local Security Checks
critical
111546SUSE SLES12 Security Update : glibc (SUSE-SU-2018:2185-1)NessusSuSE Local Security Checks
critical
111501openSUSE Security Update : glibc (openSUSE-2018-788)NessusSuSE Local Security Checks
critical
111335Amazon Linux 2 : glibc (ALAS-2018-1048)NessusAmazon Linux Local Security Checks
critical
110407openSUSE Security Update : glibc (openSUSE-2018-567)NessusSuSE Local Security Checks
critical
110393SUSE SLED12 / SLES12 Security Update : glibc (SUSE-SU-2018:1562-1)NessusSuSE Local Security Checks
critical