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CVE-2021-38172

perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)

9.8 Critical

perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.83%Up 0.9 points since Feb 8, 2022
90%50%10%1%

What each source reports

NVD Score used 9.8

perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)

Record
CVE-2021-38172
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-120
Updated
2026-11-02
CVE List No score

perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)

Record
CVE-2021-38172
Updated
2026-11-02
EUVDEUVD-2021-24642 No score

perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)

Record
EUVD-2021-24642
Updated
2026-11-03
GitHub AdvisoriesGHSA-f943-xchc-qcmp No score

perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)

perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)

Record
GHSA-f943-xchc-qcmp
Weakness
CWE-120
Updated
2026-11-02
OSVUBUNTU-CVE-2021-38172 9.8

perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)

Record
UBUNTU-CVE-2021-38172
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
perm
Ubuntu:16.04:LTS
 All versions, plus listed versions
0.4.0-1
 None known
perm
Ubuntu:18.04:LTS
 All versions, plus listed versions
0.4.0-3
 None known
perm
Ubuntu:20.04:LTS
 All versions, plus listed versions
0.4.0-40.4.0-4build1
 None known
perm
Ubuntu:22.04:LTS
 All versions, plus listed versions
0.4.0-70.4.0-8
 None known
perm
Ubuntu:24.04:LTS
 All versions, plus listed versions
0.4.0-8
 None known
perm
Ubuntu:25.10
 All versions, plus listed versions
0.4.0-8
 None known
perm
Ubuntu:26.10
 All versions, plus listed versions
0.4.0-80.4.0-8build1
 None known
perm
Ubuntu:26.04:LTS
 All versions, plus listed versions
0.4.0-8
 None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-38172 is a critical vulnerability (CVSS 9.8) in Debian Perm, published February 5, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.83%, the 78th percentile. No source names a fixed version.

References

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