Cyber Resilience

CVE-2022-0435

Memory Safety in Linux Kernel 4.8 – 4.9.301

Public PoCHigh EPSSMemory Safety
Published
25 March 2022
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.68 99.3th percentile
Risk Priority 85 floored blend · peak EPSS

Summary

CVE-2022-0435 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Linux Linux Kernel. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 0.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to CM-7 (Least Functionality) and SI-2 (Flaw Remediation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

A stack overflow vulnerability tracked as CVE-2022-0435 exists in the Linux kernel's TIPC protocol implementation. The flaw occurs when a packet is processed that specifies more than the allowed 64 domain member nodes, resulting from improper bounds handling classified under CWE-787. It affects systems using the Transparent Inter-Process Communication protocol within the kernel.

An authenticated remote attacker who already has access to the TIPC network can send a crafted packet to trigger the overflow. Successful exploitation can lead to a system crash or privilege escalation, consistent with the CVSS 8.8 rating that reflects network attack vector, low complexity, and high impact across confidentiality, integrity, and availability.

Public advisories and technical details are available from Red Hat and NetApp at the listed references, including bugzilla entries and security notices that address the reported issue. The associated EPSS score has remained near 0.54 with only minimal variation between its recorded peak and current value.

EU & UK References

Vulnerability Data

A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with malicious content where the number of domain member nodes is higher than the 64 allowed. This flaw allows…

more

a remote user to crash the system or possibly escalate their privileges if they have access to the TIPC network.

CWE(s)

Related Threats

Likely ATT&CK TechniquesAI

Techniques this vulnerability likely enables, inferred from its description, weakness type, and attributed-actor tradecraft. Confidence is per-technique.

T1190 Exploit Public-Facing Application Initial Accessconfidence: HIGH
Stack overflow in TIPC protocol handler allows remote code execution or DoS via crafted network packet to a publicly reachable kernel service.
T1068 Exploitation for Privilege Escalation Privilege Escalationconfidence: HIGH
Successful exploitation of the kernel stack overflow can directly yield privilege escalation on the target system.
inferred from description + CWE · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2023-4273Same product: Fedoraproject Fedora
CVE-2023-35001Same product: Fedoraproject Fedora
CVE-2023-2124Same product: Linux Linux Kernel
CVE-2023-35788Same product: Linux Linux Kernel
CVE-2023-2911Same product: Fedoraproject Fedora
CVE-2021-22555Same product: Linux Linux Kernel
CVE-2023-4911Same product: Fedoraproject Fedora
CVE-2024-29131Same product: Fedoraproject Fedora
CVE-2024-26733Same product: Linux Linux Kernel
CVE-2023-38545Same product: Fedoraproject Fedora

Affected Assets

linux
linux kernel
5.17 · 4.8 — 4.9.301 · 4.10 — 4.14.266 · 4.15 — 4.19.229
redhat
codeready linux builder
8.0, 8.4
redhat
codeready linux builder eus
8.2
redhat
codeready linux builder eus for power little endian
8.2
redhat
codeready linux builder for power little endian eus
8.0, 8.4
redhat
enterprise linux
8.0
redhat
enterprise linux eus
8.2, 8.4
redhat
enterprise linux for ibm z systems
8.0
redhat
enterprise linux for ibm z systems eus
8.2, 8.4
redhat
enterprise linux for power little endian
8.0
+20 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-2 Flaw Remediation
  • CM-7 Least Functionality
  • SC-7 Boundary Protection
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly requires timely application of patches that remediate the TIPC stack-overflow flaw before exploitation.

prevent

Disables or restricts the TIPC protocol module when not required, eliminating the attack surface described in the CVE.

prevent

Enforces boundary controls that can block unauthorized nodes from reaching the TIPC network used for exploitation.

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-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.

PR.PS-02 partial match
prevents

Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.

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.

detects

Security testing in development and acceptance can detect and prevent out-of-bounds write defects.

prevents

Secure development life cycle mandates practices that prevent out-of-bounds writes.

prevents

Application security requirements can specify bounds-checking and safe memory handling.

prevents

Secure architecture and engineering principles reduce the likelihood of buffer overflows.

prevents

Secure coding directly addresses out-of-bounds writes through language choice and coding standards.

prevents

Change management can enforce review gates that catch unsafe memory operations before deployment.

References