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    CVE-2014-1523

    Heap-based buffer overflow in the read_u32 function in Mozilla Firefox before 29.0, Firefox ESR 24.x before 24.5, Thunderbird before 24.5, and SeaMonkey before 2.26 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted JPEG image.

    Published:Apr 29, 2014
    Last Modified:Nov 25, 2025
    EPS:Apr 30, 2014
    EPSS Score:0.0054
    CVSS Score:6.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Seamonkey
    Vendor
    Mozilla
    Product
    Thunderbird
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Tus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Suse
    Product
    Suse Linux Enterprise Server

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
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    References

    http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132332.html
    http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132437.html
    http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00006.html
    http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00015.html
    http://lists.opensuse.org/opensuse-updates/2014-05/msg00010.html
    http://lists.opensuse.org/opensuse-updates/2014-05/msg00013.html
    http://lists.opensuse.org/opensuse-updates/2014-05/msg00033.html
    http://lists.opensuse.org/opensuse-updates/2014-05/msg00040.html
    http://rhn.redhat.com/errata/RHSA-2014-0448.html
    http://rhn.redhat.com/errata/RHSA-2014-0449.html
    http://www.debian.org/security/2014/dsa-2918
    http://www.debian.org/security/2014/dsa-2924
    http://www.mozilla.org/security/announce/2014/mfsa2014-37.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
    http://www.securityfocus.com/bid/67129
    http://www.securitytracker.com/id/1030163
    http://www.securitytracker.com/id/1030164
    http://www.securitytracker.com/id/1030165
    http://www.ubuntu.com/usn/USN-2185-1
    http://www.ubuntu.com/usn/USN-2189-1
    https://bugzilla.mozilla.org/show_bug.cgi?id=969226
    https://security.gentoo.org/glsa/201504-01
    http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132332.html
    http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132437.html
    http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00006.html
    http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00015.html
    http://lists.opensuse.org/opensuse-updates/2014-05/msg00010.html
    http://lists.opensuse.org/opensuse-updates/2014-05/msg00013.html
    http://lists.opensuse.org/opensuse-updates/2014-05/msg00033.html
    http://lists.opensuse.org/opensuse-updates/2014-05/msg00040.html
    http://rhn.redhat.com/errata/RHSA-2014-0448.html
    http://rhn.redhat.com/errata/RHSA-2014-0449.html
    http://www.debian.org/security/2014/dsa-2918
    http://www.debian.org/security/2014/dsa-2924
    http://www.mozilla.org/security/announce/2014/mfsa2014-37.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
    http://www.securityfocus.com/bid/67129
    http://www.securitytracker.com/id/1030163
    http://www.securitytracker.com/id/1030164
    http://www.securitytracker.com/id/1030165
    http://www.ubuntu.com/usn/USN-2185-1
    http://www.ubuntu.com/usn/USN-2189-1
    https://bugzilla.mozilla.org/show_bug.cgi?id=969226
    https://security.gentoo.org/glsa/201504-01

    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