Security 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 0.48 99th percentile
Risk Priority 86 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

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 Data Obfuscation (T1001); ranked in the top 1% 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

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
attack.mitre.org →
T1001.002 Steganography Command And Control
Adversaries may use steganographic techniques to hide command and control traffic to make detection efforts more difficult.
attack.mitre.org →
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
attack.mitre.org →
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-1534Same product: Fedoraproject Fedora
CVE-2024-4059Same product: Fedoraproject Fedora
CVE-2024-2626Same product: Fedoraproject Fedora
CVE-2024-5159Same product: Fedoraproject Fedora
CVE-2023-1532Same product: Fedoraproject Fedora
CVE-2024-5497Same product: Fedoraproject Fedora
CVE-2024-1669Same product: Fedoraproject Fedora
CVE-2023-1819Same product: Fedoraproject Fedora
CVE-2023-4428Same product: Fedoraproject Fedora
CVE-2023-4431Same 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.

ID.RA-01 partial match
blocks

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

PR.PS-02 partial match
blocks

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

PR.PS-06 partial match
blocks

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

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.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References