CVE-2022-37451

    Dashboard / Vulnerabilities / CVE-2022-37451

    CVE-2022-37451

    Published: 6 Aug 2022Last Modified: 12 Aug 2026

    Summary:

    Details: Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc.

    References: https://cwe.mitre.org/data/definitions/762.html, https://github.com/Exim/exim/compare/exim-4.95...exim-4.96, https://github.com/Exim/exim/wiki/EximSecurity, https://lists.exim.org/lurker/message/20220625.141825.d6de6074.en.html, https://www.exim.org/static/doc/security/, https://www.openwall.com/lists/oss-security/2022/08/06/1, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/37xxx/CVE-2022-37451.json, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LETR5CVDPFOFQHXCJP6NFLG52JZHQYDY/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XSWDF4QEXD4TDWQLYQOWCHBJKTDQR4Z7/, https://nvd.nist.gov/vuln/detail/CVE-2022-37451, https://github.com/Exim/exim/commit/51be321b27825c01829dffd90f11bfff256f7e42, https://github.com/ivd38/exim_invalid_free

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -568dbf1701e031eb1b0cfb50d3a656477f4198c8

    Affected versions

    exim-4.95

    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
    CVE-2022-37451 | CVE-DB