Integer Overflow or Wraparound Affecting glibc-utils package, versions <0:2.17-260.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-RHEL7-GLIBCUTILS-4880265
- published26 Jul 2021
- disclosed4 Feb 2018
Introduced: 4 Feb 2018
CVE-2018-11236 (opens in a new tab)How to fix?
Upgrade RHEL:7 glibc-utils to version 0:2.17-260.el7 or higher.
This issue was patched in RHSA-2018:3092.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc-utils package and not the glibc-utils package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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://security.netapp.com/advisory/ntap-20190329-0001/
- https://security.netapp.com/advisory/ntap-20190401-0001/
- https://access.redhat.com/security/cve/CVE-2018-11236
- https://sourceware.org/bugzilla/show_bug.cgi?id=22786
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5460617d1567657621107d895ee2dd83bc1f88f2
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://access.redhat.com/errata/RHBA-2019:0327
- https://access.redhat.com/errata/RHSA-2018:3092
- https://usn.ubuntu.com/4416-1/
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=5460617d1567657621107d895ee2dd83bc1f88f2