CVE-2021-37600: An integer overflow in util-linux through 2.37.1 can potentially cause a buffer overflow if an attacker were a

Q: How do I fix CVE-2021-37600?

util-linux: upgrade to newer than 2.37.1; ontap select deploy administration utility: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2021-37600 being exploited?

CVE-2021-37600 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-37600 affect?

CVE-2021-37600 affects util-linux, ontap select deploy administration utility. Severity is medium (CVSS 5.5). An integer overflow in util-linux through 2.37.1 can potentially cause a buffer overflow if an attacker were able to use system resources in a way that leads to a large number in the /proc/sysvipc/sem file. NOTE: this is unexploitable in GN

Q: How urgent is CVE-2021-37600?

Priority 42/100. Public exploit reference; On your watchlist

This month

MEDIUM 5.5WATCHLISTUPGRADEMITIGATE

CVE-2021-37600 is a medium-severity flaw (CVSS 5.5) affecting util-linux, ontap select deploy administration utility. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An integer overflow in util-linux through 2.37.1 can potentially cause a buffer overflow if an attacker were able to use system resources in a way that leads to a large number in the /proc/sysvipc/sem file. NOTE: this is unexploitable in GNU C Library environments, and possibly in all realistic environments.

Why this priority

Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-190
Published	2021-07-30
Last modified	2026-10-14

Publisher (CNA): MITRE · Vendor: kernel · netapp

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-07-30 14:15 UTCPublished CVE record published
2026-10-14 12:17 UTCUpdated Record last modified

kernel util-linux UPGRADE

Affected: <= 2.37.1

Fixed in: newer than 2.37.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy util-linux || rpm -q util-linux || util-linux --version

2. UPGRADE to newer than 2.37.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade util-linux

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade util-linux

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

netapp ontap select deploy administration utility MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ontap-select-deploy-administration-utility || rpm -q ontap-select-deploy-administration-utility || ontap-select-deploy-administration-utility --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-37600?

util-linux: upgrade to newer than 2.37.1; ontap select deploy administration utility: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-37600 being exploited?

CVE-2021-37600 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-37600 affect?

CVE-2021-37600 affects util-linux, ontap select deploy administration utility. Severity is medium (CVSS 5.5). An integer overflow in util-linux through 2.37.1 can potentially cause a buffer overflow if an attacker were able to use system resources in a way that leads to a large number in the /proc/sysvipc/sem file. NOTE: this is unexploitable in GN

How urgent is CVE-2021-37600?

Priority 42/100. Public exploit reference; On your watchlist

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References

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