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    CVE-2017-6949

    An issue was discovered in CHICKEN Scheme through 4.12.0. When using a nonstandard CHICKEN-specific extension to allocate an SRFI-4 vector in unmanaged memory, the vector size would be used in unsanitised form as an argument to malloc(). With an unexpected size, the impact may have been a segfault or buffer overflow.

    Published:Mar 16, 2017
    Last Modified:Apr 20, 2025
    EPS:Mar 16, 2017
    EPSS Score:0.00513
    CVSS Score:8.1

    Affected Products

    Vendor
    Call-cc
    Product
    Chicken

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2012-6125 (CVSS 9.8) — Chicken before 4.8.0 is susceptible to algorithmic complexity attacks related to hash table collisions.…
    CVE-2012-6124 (CVSS 5.3) — A casting error in Chicken before 4.8.0 on 64-bit platform caused the random number generator to return a cons…
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    CVE-2012-6122 (CVSS 7.5) — Buffer overflow in the thread scheduler in Chicken before 4.8.0.1 allows attackers to cause a denial of servic…
    CVE-2013-2075 (CVSS 8.8) — Multiple buffer overflows in the (1) R5RS char-ready, (2) tcp-accept-ready, and (3) file-select procedures in …
    CVE-2013-2024 (CVSS 8.8) — OS command injection vulnerability in the "qs" procedure from the "utils" module in Chicken before 4.9.0.…
    CVE-2017-11343 (CVSS 7.5) — Due to an incomplete fix for CVE-2012-6125, all versions of CHICKEN Scheme up to and including 4.12.0 are vuln…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High