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    CVE-2022-29694

    Unicorn Engine v2.0.0-rc7 and below was discovered to contain a NULL pointer dereference via qemu_ram_free.

    Published:May 27, 2022
    Last Modified:Nov 21, 2024
    EPS:May 27, 2022
    EPSS Score:0.0111
    CVSS Score:7.5

    Affected Products

    Vendor
    Unicorn-engine
    Product
    Unicorn Engine

    Exploits

    https://github.com/unicorn-engine/unicorn/issues/1588https://violentbinary.github.io/posts/2-simple-analysis-of-software-virtualization-of-memory-in-unicorn-engine/https://github.com/unicorn-engine/unicorn/issues/1588https://violentbinary.github.io/posts/2-simple-analysis-of-software-virtualization-of-memory-in-unicorn-engine/

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2022-29695 (CVSS 7.5) — Unicorn Engine v2.0.0-rc7 contains memory leaks caused by an incomplete unicorn engine initialization.…
    CVE-2022-29693 (CVSS 7.5) — Unicorn Engine v2.0.0-rc7 and below was discovered to contain a memory leak via the function uc_close at /my/u…
    CVE-2022-29692 (CVSS 7.8) — Unicorn Engine v1.0.3 was discovered to contain a use-after-free vulnerability via the hook function.…
    CVE-2021-44078 (CVSS 8.1) — An issue was discovered in split_region in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers …
    CVE-2021-36979 (CVSS 5.5) — Unicorn Engine 1.0.2 has an out-of-bounds write in tb_flush_armeb (called from cpu_arm_exec_armeb and tcg_cpu_…
    CVE-2020-36431 (CVSS 5.5) — Unicorn Engine 1.0.2 has an out-of-bounds write in helper_wfe_arm.…

    References

    https://github.com/unicorn-engine/unicorn/commit/3d3deac5e6d38602b689c4fef5dac004f07a2e63
    https://github.com/unicorn-engine/unicorn/issues/1588
    https://github.com/unicorn-engine/unicorn/pull/1593/commits/31389e59457f304be3809f9679f91a42daa7ebaa
    https://github.com/unicorn-engine/unicorn/pull/1593/commits/6a879a082d4d67a5d13f1233ae0334cde0a7f844
    https://violentbinary.github.io/posts/2-simple-analysis-of-software-virtualization-of-memory-in-unicorn-engine/
    https://github.com/unicorn-engine/unicorn/commit/3d3deac5e6d38602b689c4fef5dac004f07a2e63
    https://github.com/unicorn-engine/unicorn/issues/1588
    https://github.com/unicorn-engine/unicorn/pull/1593/commits/31389e59457f304be3809f9679f91a42daa7ebaa
    https://github.com/unicorn-engine/unicorn/pull/1593/commits/6a879a082d4d67a5d13f1233ae0334cde0a7f844
    https://violentbinary.github.io/posts/2-simple-analysis-of-software-virtualization-of-memory-in-unicorn-engine/

    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