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    CVE-2016-1247

    The nginx package before 1.6.2-5+deb8u3 on Debian jessie, the nginx packages before 1.4.6-1ubuntu3.6 on Ubuntu 14.04 LTS, before 1.10.0-0ubuntu0.16.04.3 on Ubuntu 16.04 LTS, and before 1.10.1-0ubuntu1.1 on Ubuntu 16.10, and the nginx ebuild before 1.10.2-r3 on Gentoo allow local users with access to the web server user account to gain root privileges via a symlink attack on the error log.

    Published:Oct 25, 2016
    Last Modified:Apr 12, 2025
    EPS:Nov 29, 2016
    EPSS Score:0.09412
    CVSS Score:7.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    F5
    Product
    Nginx
    Vendor
    Fedoraproject
    Product
    Fedora

    Exploits

    http://packetstormsecurity.com/files/139750/Nginx-Debian-Based-Distros-Root-Privilege-Escalation.htmlhttps://legalhackers.com/advisories/Nginx-Exploit-Deb-Root-PrivEsc-CVE-2016-1247.htmlhttps://www.exploit-db.com/exploits/40768/https://www.youtube.com/watch?v=aTswN1k1fQshttp://packetstormsecurity.com/files/139750/Nginx-Debian-Based-Distros-Root-Privilege-Escalation.htmlhttps://legalhackers.com/advisories/Nginx-Exploit-Deb-Root-PrivEsc-CVE-2016-1247.htmlhttps://www.exploit-db.com/exploits/40768/https://www.youtube.com/watch?v=aTswN1k1fQshttps://www.exploit-db.com/exploits/40768

    Related CVEs

    CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…
    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://packetstormsecurity.com/files/139750/Nginx-Debian-Based-Distros-Root-Privilege-Escalation.html
    http://seclists.org/fulldisclosure/2016/Nov/78
    http://seclists.org/fulldisclosure/2017/Jan/33
    http://www.debian.org/security/2016/dsa-3701
    http://www.securityfocus.com/archive/1/539796/100/0/threaded
    http://www.securityfocus.com/bid/93903
    http://www.securitytracker.com/id/1037104
    http://www.ubuntu.com/usn/USN-3114-1
    https://legalhackers.com/advisories/Nginx-Exploit-Deb-Root-PrivEsc-CVE-2016-1247.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBIZEKHBOCKO7FUMCO4X53ENMWU5OYFX/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ESTIADC7BDB6VTH4JAP6C6OCW2CQ4NHP/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3WOO7E5R2HT5XVOIOFPEFALILVOWZUF/
    https://security.gentoo.org/glsa/201701-22
    https://www.exploit-db.com/exploits/40768/
    https://www.youtube.com/watch?v=aTswN1k1fQs
    http://packetstormsecurity.com/files/139750/Nginx-Debian-Based-Distros-Root-Privilege-Escalation.html
    http://seclists.org/fulldisclosure/2016/Nov/78
    http://seclists.org/fulldisclosure/2017/Jan/33
    http://www.debian.org/security/2016/dsa-3701
    http://www.securityfocus.com/archive/1/539796/100/0/threaded
    http://www.securityfocus.com/bid/93903
    http://www.securitytracker.com/id/1037104
    http://www.ubuntu.com/usn/USN-3114-1
    https://legalhackers.com/advisories/Nginx-Exploit-Deb-Root-PrivEsc-CVE-2016-1247.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBIZEKHBOCKO7FUMCO4X53ENMWU5OYFX/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ESTIADC7BDB6VTH4JAP6C6OCW2CQ4NHP/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3WOO7E5R2HT5XVOIOFPEFALILVOWZUF/
    https://security.gentoo.org/glsa/201701-22
    https://www.exploit-db.com/exploits/40768/
    https://www.youtube.com/watch?v=aTswN1k1fQs

    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