Vulnerabilities / CVE-2018-11236

critical

CVE-2018-11236

glibc: Integer overflow in stdlib/canonicalize.c on 32-bit architectures leading to stack-based buffer overflow

Published Modified CWE 190, 787
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat7.8CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, Photon OS. Rated lower by Red Hat (medium), Amazon (medium), Oracle (medium), Ubuntu (medium).

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.

Affected packages and fixed versions

SourcePackageFixed in
Photon OS 1.0glibc2.22-21.ph1
Photon OS 2.0glibc2.26-13.ph2
amazon linux 1glibc, glibc-common, glibc-debuginfo and 6 more2.17-260.175.amzn1
amazon linux 2glibc, glibc-all-langpacks, glibc-benchtests and 198 more2.26-28.amzn2.0.1
debian 11glibc2.27-4
debian 12glibc2.27-4
debian 13glibc2.27-4
debian 14glibc2.27-4
debian 9glibc2.24-11+deb9u4
echoglibc2.27-4
Oracle Linux 7glibc, glibc-common, glibc-devel and 4 more2.17-260.0.9.el7
Red Hatglibc, glibc-common, glibc-devel and 4 moreno fix listed
Show all 244 entries from 22 sources
SourcePackageFixed in
Photon OS 1.0glibc2.22-21.ph1
Photon OS 2.0glibc2.26-13.ph2
amazon linux 1glibc2.17-260.175.amzn1
amazon linux 1glibc-common2.17-260.175.amzn1
amazon linux 1glibc-debuginfo2.17-260.175.amzn1
amazon linux 1glibc-debuginfo-common2.17-260.175.amzn1
amazon linux 1glibc-devel2.17-260.175.amzn1
amazon linux 1glibc-headers2.17-260.175.amzn1
amazon linux 1glibc-static2.17-260.175.amzn1
amazon linux 1glibc-utils2.17-260.175.amzn1
amazon linux 1nscd2.17-260.175.amzn1
amazon linux 2glibc2.26-28.amzn2.0.1
amazon linux 2glibc-all-langpacks2.26-28.amzn2.0.1
amazon linux 2glibc-benchtests2.26-28.amzn2.0.1
amazon linux 2glibc-common2.26-28.amzn2.0.1
amazon linux 2glibc-debuginfo2.26-28.amzn2.0.1
amazon linux 2glibc-debuginfo-common2.26-28.amzn2.0.1
amazon linux 2glibc-devel2.26-28.amzn2.0.1
amazon linux 2glibc-headers2.26-28.amzn2.0.1
amazon linux 2glibc-langpack-aa2.26-28.amzn2.0.1
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amazon linux 2glibc-langpack-lzh2.26-28.amzn2.0.1
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amazon linux 2glibc-langpack-sd2.26-28.amzn2.0.1
amazon linux 2glibc-langpack-se2.26-28.amzn2.0.1
amazon linux 2glibc-langpack-sgs2.26-28.amzn2.0.1
amazon linux 2glibc-langpack-shs2.26-28.amzn2.0.1
amazon linux 2glibc-langpack-si2.26-28.amzn2.0.1
amazon linux 2glibc-langpack-sid2.26-28.amzn2.0.1
amazon linux 2glibc-langpack-sk2.26-28.amzn2.0.1
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amazon linux 2glibc-langpack-sv2.26-28.amzn2.0.1
amazon linux 2glibc-langpack-sw2.26-28.amzn2.0.1
amazon linux 2glibc-langpack-szl2.26-28.amzn2.0.1
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amazon linux 2glibc-nss-devel2.26-28.amzn2.0.1
amazon linux 2glibc-static2.26-28.amzn2.0.1
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debian 11glibc2.27-4
debian 12glibc2.27-4
debian 13glibc2.27-4
debian 14glibc2.27-4
debian 9glibc2.24-11+deb9u4
echoglibc2.27-4
Oracle Linux 7glibc2.17-260.0.9.el7
Oracle Linux 7glibc-common2.17-260.0.9.el7
Oracle Linux 7glibc-devel2.17-260.0.9.el7
Oracle Linux 7glibc-headers2.17-260.0.9.el7
Oracle Linux 7glibc-static2.17-260.0.9.el7
Oracle Linux 7glibc-utils2.17-260.0.9.el7
Oracle Linux 7nscd2.17-260.0.9.el7
Red Hatglibcno fix listed
Red Hatglibc-commonno fix listed
Red Hatglibc-develno fix listed
Red Hatglibc-headersno fix listed
Red Hatglibc-staticno fix listed
Red Hatglibc-utilsno fix listed
Red Hatnscdno fix listed
root.io debian 11rootio-glibc2.27-4
root.io debian 12rootio-glibc2.27-4
root.io debian 13rootio-glibc2.27-4
seal Red Hat 8glibc2.28-164.0.5.el8_5.3+sp999, 2.28-251.el8_10.11+sp999, 2.28-251.el8_10.14+sp999
seal Red Hat 8seal-glibc2.28-164.0.5.el8_5.3+sp999, 2.28-251.el8_10.11+sp999, 2.28-251.el8_10.14+sp999
seal Red Hat 9glibc2.34-125.el9_5.1+sp999
seal Red Hat 9seal-glibc2.34-125.el9_5.1+sp999
ubuntu 14.04-ESMeglibc2.19-0ubuntu6.15+esm3
ubuntu 16.04glibc2.23-0ubuntu11.2
ubuntu 16.04-ESMglibc2.23-0ubuntu11.2
ubuntu 18.04glibc2.27-3ubuntu1.2
ubuntu 18.04-ESMglibc2.27-3ubuntu1.2

References

All 16 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.