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    CVE-2012-2840

    Off-by-one error in the exif_convert_utf16_to_utf8 function in exif-entry.c in the EXIF Tag Parsing Library (aka libexif) before 0.6.21 allows remote attackers to cause a denial of service or possibly execute arbitrary code via crafted EXIF tags in an image.

    Published:Jul 12, 2012
    Last Modified:Apr 11, 2025
    EPS:Jul 13, 2012
    EPSS Score:0.02169
    CVSS Score:7.5

    Affected Products

    Vendor
    Libexif Project
    Product
    Libexif
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-193 Off-by-one Error

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-40385 (CVSS 4) — In libexif through 0.6.25, an unsigned 32bit integer overflow in Nikon MakerNote handling could be used by loc…
    CVE-2026-32775 (CVSS 7.4) — libexif through 0.6.25 has a flaw in decoding MakerNotes. If the exif_mnote_data_get_value function gets passe…
    CVE-2020-0198 (CVSS 7.5) — In exif_data_load_data_content of exif-data.c, there is a possible UBSAN abort due to an integer overflow. Thi…
    CVE-2020-0181 (CVSS 7.5) — In exif_data_load_data_thumbnail of exif-data.c, there is a possible denial of service due to an integer overf…
    CVE-2020-13113 (CVSS 8.2) — An issue was discovered in libexif before 0.6.22. Use of uninitialized memory in EXIF Makernote handling could…
    CVE-2020-13114 (CVSS 7.5) — An issue was discovered in libexif before 0.6.22. An unrestricted size in handling Canon EXIF MakerNote data c…
    CVE-2020-13112 (CVSS 9.1) — An issue was discovered in libexif before 0.6.22. Several buffer over-reads in EXIF MakerNote handling could l…
    CVE-2020-0093 (CVSS 5) — In exif_data_save_data_entry of exif-data.c, there is a possible out of bounds read due to a missing bounds ch…
    CVE-2020-12767 (CVSS 5.5) — exif_entry_get_value in exif-entry.c in libexif 0.6.21 has a divide-by-zero error.…

    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