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    CVE-2018-18650

    An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.

    Published:Oct 25, 2018
    Last Modified:Nov 21, 2024
    EPS:Oct 25, 2018
    EPSS Score:0.00178
    CVSS Score:5.5

    Affected Products

    Vendor
    Xpdfreader
    Product
    Xpdf

    Exploits

    https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2024-7868 (CVSS 2.1) — In Xpdf 4.05 (and earlier), invalid header info in a DCT (JPEG) stream can lead to an uninitialized variable i…
    CVE-2024-7867 (CVSS 2.1) — In Xpdf 4.05 (and earlier), very large coordinates in a page box can cause an integer overflow and divide-by-z…
    CVE-2024-7866 (CVSS 2.1) — In Xpdf 4.05 (and earlier), a PDF object loop in a pattern resource leads to infinite recursion and a stack ov…
    CVE-2024-4976 (CVSS 2.1) — Out-of-bounds array write in Xpdf 4.05 and earlier, due to missing object type check in AcroForm field referen…
    CVE-2024-4568 (CVSS 2.9) — In Xpdf 4.05 (and earlier), a PDF object loop in the PDF resources leads to infinite recursion and a stack ove…
    CVE-2024-4141 (CVSS 2.9) — Out-of-bounds array write in Xpdf 4.05 and earlier, triggered by an invalid character code in a Type 1 font. T…
    CVE-2024-3900 (CVSS 2.9) — Out-of-bounds array write in Xpdf 4.05 and earlier, triggered by long Unicode sequence in ActualText. …
    CVE-2024-3247 (CVSS 2.9) — In Xpdf 4.05 (and earlier), a PDF object loop in an object stream leads to infinite recursion and a stack over…
    CVE-2024-3248 (CVSS 2.9) — In Xpdf 4.05 (and earlier), a PDF object loop in the attachments leads to infinite recursion and a stack overf…
    CVE-2024-2971 (CVSS 2.9) — Out-of-bounds array write in Xpdf 4.05 and earlier, triggered by negative object number in indirect reference …

    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