USN-7700-1

    Dashboard / Vulnerabilities / USN-7700-1

    USN-7700-1

    Published: 19 Aug 2025Last Modified: 27 Apr 2026

    Summary: gcc-10, gcc-11, gcc-12 vulnerability

    Details: It was discovered that the -fstack-protector hardening feature in GCC for AArch64 did not properly protect dynamically-sized local variables such as those created using C99 variable length arrays or alloca. As a result, an attacker who was able to trigger a buffer overflow in such cases could bypass the intended stack protection checks. (CVE-2023-4039)

    References: https://ubuntu.com/security/notices/USN-7700-1, https://ubuntu.com/security/CVE-2023-4039

    Affected packages

    Package

    Name: gcc-10

    Purl: pkg:deb/ubuntu/[email protected]~20.04.1+esm1?arch=source&distro=esm-infra/focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -10.5.0-1ubuntu1~20.04.1+esm1

    Affected versions

    10-20200202-1ubuntu1

    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
    USN-7700-1 | CVE-DB