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    CVE-2023-38253

    An out-of-bounds read flaw was found in w3m, in the growbuf_to_Str function in indep.c. This issue may allow an attacker to cause a denial of service through a crafted HTML file.

    Published:Jun 29, 2023
    Last Modified:Feb 13, 2025
    EPS:Jul 14, 2023
    EPSS Score:0.00018
    CVSS Score:4.7

    Affected Products

    Vendor
    Fedoraproject
    Product
    Extra Packages For Enterprise Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Tats
    Product
    W3m

    Exploits

    https://github.com/tats/w3m/issues/271https://github.com/tats/w3m/issues/271

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2023-4255 (CVSS 5.5) — An out-of-bounds write issue has been discovered in the backspace handling of the checkType() function in etc.…
    CVE-2023-4256 (CVSS 5.5) — Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the tcpedit_dlt_cleanup() fu…
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    References

    https://access.redhat.com/security/cve/CVE-2023-38253
    https://bugzilla.redhat.com/show_bug.cgi?id=2222779
    https://github.com/tats/w3m/issues/271
    https://lists.fedoraproject.org/archives/list/[email protected]/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/
    https://access.redhat.com/security/cve/CVE-2023-38253
    https://bugzilla.redhat.com/show_bug.cgi?id=2222779
    https://github.com/tats/w3m/issues/271
    https://lists.fedoraproject.org/archives/list/[email protected]/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/

    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