Cyber Resilience

CVE-2023-4427

Memory Safety in Fedoraproject Fedora 37 … 39

Public PoCMemory Safety
Published
23 August 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 8.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
EPSS Score 0.34 98th percentile
Risk Priority 86 floored blend · peak EPSS

Summary

CVE-2023-4427 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Fedoraproject Fedora. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

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

The vulnerability is an out-of-bounds memory access flaw in the V8 JavaScript engine in Google Chrome versions prior to 116.0.5845.110. Tracked as CVE-2023-4427 and assigned CWE-125, the issue enables an out-of-bounds memory read and carries a CVSS 3.1 score of 8.1.

A remote attacker can exploit the flaw by serving a specially crafted HTML page to a victim. Successful exploitation allows the attacker to read memory outside expected bounds, resulting in high confidentiality and availability impact while requiring only user interaction and no additional privileges.

Chrome desktop stable update 116.0.5845.110 resolves the vulnerability. Fedora has published corresponding package advisories to deliver the fixed Chrome build to affected Linux systems.

The associated EPSS score reached 0.8360 at peak with no subsequent material rise from a lower baseline.

EU & UK References

Vulnerability Data

Out of bounds memory access in V8 in Google Chrome prior to 116.0.5845.110 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: High)

CWE(s)
CWE-125

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 →
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-1532Same product: Fedoraproject Fedora
CVE-2024-2626Same product: Fedoraproject Fedora
CVE-2023-1534Same product: Fedoraproject Fedora
CVE-2024-4059Same product: Fedoraproject Fedora
CVE-2024-5159Same product: Fedoraproject Fedora
CVE-2024-1669Same product: Fedoraproject Fedora
CVE-2024-5497Same product: Fedoraproject Fedora
CVE-2021-21220Same product: Fedoraproject Fedora
CVE-2023-1529Same product: Fedoraproject Fedora
CVE-2021-30632Same product: Fedoraproject Fedora

Affected Assets

google
chrome
≤ 116.0.5845.110
fedoraproject
fedora
37, 38, 39

Mitigating Controls

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 such as bounds checking and memory-safe languages directly prevent out-of-bounds reads.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover instances of out-of-bounds reads after code is deployed.

PR.PS-02 partial match
prevents

Routine patching replaces vulnerable code containing out-of-bounds read flaws.

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 and acceptance includes fuzzing and static analysis that detect out-of-bounds read defects before release.

A.8.15 Logging partial match
finds

Logging can record evidence of an out-of-bounds read but does not prevent the weakness itself.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates input validation and bounds checking that directly prevent out-of-bounds reads.

A.8.26 Application security requirements partial match
prevents

Application security requirements include explicit bounds and memory-safety specifications that mitigate buffer over-reads.

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

Secure system architecture and engineering principles require memory-safe design patterns and runtime protections against out-of-bounds access.

A.8.28 Secure coding partial match
prevents

Secure coding standards explicitly forbid unsafe pointer arithmetic and mandate bounds-checked reads, eliminating CWE-125.

References