Cyber Resilience

CVE-2023-0179

Memory Safety in Canonical Ubuntu Linux 16.04 … 22.04

Public PoCMemory Safety
Published
27 March 2023
Modified
21 November 2024
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.019 78th percentile
Risk Priority 61 floored blend · peak EPSS

Summary

CVE-2023-0179 is a high-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Canonical Ubuntu Linux. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 22% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability Data

A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to the root user via arbitrary code execution.

CWE(s)
CWE-190

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-41175Same product: Fedoraproject Fedora
CVE-2023-5869Same product: Redhat Enterprise Linux
CVE-2018-14634Same product: Canonical Ubuntu Linux
CVE-2023-40745Same product: Fedoraproject Fedora
CVE-2023-2603Same product: Fedoraproject Fedora
CVE-2023-34151Same product: Fedoraproject Fedora
CVE-2023-38403Same product: Fedoraproject Fedora
CVE-2025-13601Same product: Redhat Codeready Linux Builder
CVE-2024-49994Same product: Linux Linux Kernel
CVE-2024-43838Same product: Linux Linux Kernel

Affected Assets

linux
linux kernel
5.5.0 — 5.10.164 · 5.11 — 5.15.89 · 5.16 — 6.1.7
canonical
ubuntu linux
16.04, 18.04, 20.04, 22.04
fedoraproject
fedora
36, 37
redhat
enterprise linux
9.0
redhat
enterprise linux eus
9.0
redhat
enterprise linux for ibm z systems
9.0
redhat
enterprise linux for power little endian
9.0
redhat
enterprise linux for power little endian eus
9.0
redhat
enterprise linux for real time
9.0
redhat
enterprise linux for real time for nfv
9.0
+3 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V5.2.6

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require use of safe arithmetic, bounds checks, and testing that prevent integer overflows.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development can detect integer overflows before release.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC mandates input validation and arithmetic checks that prevent integer overflows.

A.8.26 Application security requirements partial match
degrades

Application security requirements include bounds checking and safe arithmetic to avoid overflow conditions.

A.8.27 Secure system architecture and engineering principles partial match
degrades

Secure architecture principles require defensive coding patterns that mitigate integer wraparound risks.

A.8.28 Secure coding partial match
prevents

Secure coding standards explicitly forbid unsafe integer operations and mandate overflow-safe constructs.

References