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    2 vulnerabilities found for zlib by Cloudflare

    CVE-2023-6992 (GCVE-0-2023-6992)

    Vulnerability from cvelistv5 – Published: 2024-01-04 11:11 – Updated: 2024-09-06 18:16
    VLAI
    Title
    Memory corruption issues is Cloudflare zlib implementation
    Summary
    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.
    Severity
    4 (Medium)
    CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-20 - Improper Input Validation
    • CWE-122 - Heap-based Buffer Overflow
    • CWE-126 - Buffer Over-read
    Assigner
    References
    Impacted products
    Vendor Product Version
    Cloudflare zlib Affected: 0 , < 8352d10 (git)
    		Create a notification for this product.
    Credits
    Martin Schwarzl
    Show details on NVD website
    To clipboard 

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    CVE-2023-6992 (GCVE-0-2023-6992)

    Vulnerability from nvd – Published: 2024-01-04 11:11 – Updated: 2024-09-06 18:16
    VLAI
    Title
    Memory corruption issues is Cloudflare zlib implementation
    Summary
    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.
    Severity
    4 (Medium)
    CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-20 - Improper Input Validation
    • CWE-122 - Heap-based Buffer Overflow
    • CWE-126 - Buffer Over-read
    Assigner
    References
    Impacted products
    Vendor Product Version
    Cloudflare zlib Affected: 0 , < 8352d10 (git)
    		Create a notification for this product.
    Credits
    Martin Schwarzl
    Show details on NVD website
    To clipboard 

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