CVE-2023-6992

Memory corruption issues is Cloudflare zlib implementation

Published Jan 4, 2024 CVSS 3.1 · 4 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-59184 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.
History

No history.

Sources

Status
PUBLISHED
Assigner
cloudflare
Published
Updated
Sep 6, 2024, 6:16 PM
Reserved
Dec 20, 2023, 10:48 AM
Status
Modified
Published
Jan 4, 2024, 12:15 PM
Modified
Jun 17, 2026, 6:51 AM