Medium severity · published Jul 28, 2021
CVE-2021-37600
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…
5.5
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OS
Ontap Select Deploy Administration Utility · Netapp
All versions, or not specified · source: NVD
UT
Util-linux · Kernel
through 2.37.1 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-37600
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-37600
Patch
https://github.com/karelzak/util-linux/commit/1c9143d0c1f979c3daf10e1c37b5b1e916c22a1c
Exploit
https://github.com/karelzak/util-linux/issues/1395
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/04/msg00005.html
security.gentoo.org
https://security.gentoo.org/glsa/202401-08
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0002/
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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