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    CVE-2019-11745

    When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

    Published:Nov 21, 2019
    Last Modified:Nov 21, 2024
    EPS:Jan 8, 2020
    EPSS Score:0.0062
    CVSS Score:8.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Firefox Esr
    Vendor
    Mozilla
    Product
    Thunderbird
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Redhat
    Product
    Ansible Tower
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Tus
    Vendor
    Siemens
    Product
    Ruggedcom Rox Mx5000
    Vendor
    Siemens
    Product
    Ruggedcom Rox Mx5000 Firmware
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1400
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1400 Firmware
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1500
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1500 Firmware
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1501
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1501 Firmware
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1510
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1510 Firmware
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1511
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1511 Firmware
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1512
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx1512 Firmware
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx5000
    Vendor
    Siemens
    Product
    Ruggedcom Rox Rx5000 Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    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…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html
    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html
    https://access.redhat.com/errata/RHSA-2020:0243
    https://access.redhat.com/errata/RHSA-2020:0466
    https://bugzilla.mozilla.org/show_bug.cgi?id=1586176
    https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf
    https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html
    https://security.gentoo.org/glsa/202003-02
    https://security.gentoo.org/glsa/202003-10
    https://security.gentoo.org/glsa/202003-37
    https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04
    https://usn.ubuntu.com/4241-1/
    https://usn.ubuntu.com/4335-1/
    https://www.mozilla.org/security/advisories/mfsa2019-36/
    https://www.mozilla.org/security/advisories/mfsa2019-37/
    https://www.mozilla.org/security/advisories/mfsa2019-38/
    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html
    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html
    https://access.redhat.com/errata/RHSA-2020:0243
    https://access.redhat.com/errata/RHSA-2020:0466
    https://bugzilla.mozilla.org/show_bug.cgi?id=1586176
    https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf
    https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html
    https://security.gentoo.org/glsa/202003-02
    https://security.gentoo.org/glsa/202003-10
    https://security.gentoo.org/glsa/202003-37
    https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04
    https://usn.ubuntu.com/4241-1/
    https://usn.ubuntu.com/4335-1/
    https://www.mozilla.org/security/advisories/mfsa2019-36/
    https://www.mozilla.org/security/advisories/mfsa2019-37/
    https://www.mozilla.org/security/advisories/mfsa2019-38/

    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