CVE-2023-6992

Cloudflare version of zlib library was found to be vulnerable to memory corruption issues affecting the deflation algorithm implementation (deflate.c). The issues resulted from improper input validation and heap-based buffer overflow. A local attacker could exploit the problem during compression using a crafted malicious file potentially leading to denial of service of the software. Patches: The issue has been patched in commit 8352d10 https://github.com/cloudflare/zlib/commit/8352d108c05db1bdc5ac3bdf834dad641694c13c . The upstream repository is not affected.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/cloudflare/zlib	Product
https://github.com/cloudflare/zlib/security/advisories/GHSA-vww9-j87r-4cqh	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cloudflare:zlib:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-01-04 12:15

Updated : 2024-01-10 01:14

NVD link : CVE-2023-6992

Mitre link : CVE-2023-6992

CVE.ORG link : CVE-2023-6992

JSON object : View

Products Affected

cloudflare

zlib

CWE

CWE-787

Out-of-bounds Write

CWE-122

Heap-based Buffer Overflow

CWE-126

Buffer Over-read

CWE-20

Improper Input Validation

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