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    CVE-2016-2851

    Integer overflow in proto.c in libotr before 4.1.1 on 64-bit platforms allows remote attackers to cause a denial of service (memory corruption and application crash) or execute arbitrary code via a series of large OTR messages, which triggers a heap-based buffer overflow.

    Published:Apr 7, 2016
    Last Modified:Apr 12, 2025
    EPS:Apr 7, 2016
    EPSS Score:0.23058
    CVSS Score:9.8

    Affected Products

    Vendor
    Cypherpunks
    Product
    Libotr
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Opensuse
    Product
    Opensuse

    Exploits

    http://seclists.org/fulldisclosure/2016/Mar/21https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.htmlhttps://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/http://seclists.org/fulldisclosure/2016/Mar/21https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.htmlhttps://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/https://www.exploit-db.com/exploits/39550

    References

    http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00021.html
    http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00030.html
    http://seclists.org/fulldisclosure/2016/Mar/21
    http://www.debian.org/security/2016/dsa-3512
    http://www.securityfocus.com/archive/1/537745/100/0/threaded
    http://www.securityfocus.com/bid/84285
    http://www.ubuntu.com/usn/USN-2926-1
    https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.html
    https://security.gentoo.org/glsa/201701-10
    https://www.exploit-db.com/exploits/39550/
    https://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/
    http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00021.html
    http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00030.html
    http://seclists.org/fulldisclosure/2016/Mar/21
    http://www.debian.org/security/2016/dsa-3512
    http://www.securityfocus.com/archive/1/537745/100/0/threaded
    http://www.securityfocus.com/bid/84285
    http://www.ubuntu.com/usn/USN-2926-1
    https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.html
    https://security.gentoo.org/glsa/201701-10
    https://www.exploit-db.com/exploits/39550/
    https://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/

    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