{"id":"CVE-2016-2197","aliases":["DEBIAN-CVE-2016-2197","EUVD-2016-3281","GHSA-ph2m-74p3-x4w9","MGASA-2016-0176","SUSE-SU-2016:1703-1"],"status":"published","title":"QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null...","description":"QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00421,"percentile":0.3673,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2016-05-18T20:14:22Z","modified":"2026-10-24T10:30:33Z","fixes":[{"ecosystem":"Debian:12","package":"qemu","fixed_in":["1:2.6+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"qemu","fixed_in":["1:2.6+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"qemu","fixed_in":["1:2.6+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.6+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.6+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.6+dfsg-1"}]}]},{"source":"osv","ecosystem":"Mageia:5","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.1-5.mga5"}]}],"bundled":18},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Desktop 12 SP1","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.1-14.1"}]}],"bundled":32},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP1","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.1-14.1"}]}],"bundled":32},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP1","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.1-14.1"}]}],"bundled":32}],"products":[{"vendor":"qemu","product":"qemu"}],"references":[{"url":"http://www.securityfocus.com/bid/82235","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2016/01/29/2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://security.gentoo.org/glsa/201604-01","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2016/01/30/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1302057","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","report"]},{"url":"https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg05742.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch","Vendor Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-2197"},{"url":"https://github.com/advisories/GHSA-ph2m-74p3-x4w9"},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-2197","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2016-0176.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=17534","tags":["report"]},{"url":"http://wiki.qemu.org/ChangeLog/2.2","tags":["web"]},{"url":"http://wiki.qemu.org/ChangeLog/2.3","tags":["web"]},{"url":"http://wiki.qemu.org/ChangeLog/2.4","tags":["web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1300771","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1283934","tags":["report"]},{"url":"http://www.ubuntu.com/usn/usn-2891-1/","tags":["web"]},{"url":"http://www.ubuntu.com/usn/usn-2974-1/","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2016/suse-su-20161703-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/886378","tags":["report"]},{"url":"https://bugzilla.suse.com/940929","tags":["report"]},{"url":"https://bugzilla.suse.com/958491","tags":["report"]},{"url":"https://bugzilla.suse.com/958917","tags":["report"]},{"url":"https://bugzilla.suse.com/959005","tags":["report"]},{"url":"https://bugzilla.suse.com/959386","tags":["report"]},{"url":"https://bugzilla.suse.com/960334","tags":["report"]},{"url":"https://bugzilla.suse.com/960708","tags":["report"]},{"url":"https://bugzilla.suse.com/960725","tags":["report"]},{"url":"https://bugzilla.suse.com/960835","tags":["report"]},{"url":"https://bugzilla.suse.com/961332","tags":["report"]},{"url":"https://bugzilla.suse.com/961333","tags":["report"]},{"url":"https://bugzilla.suse.com/961358","tags":["report"]},{"url":"https://bugzilla.suse.com/961556","tags":["report"]},{"url":"https://bugzilla.suse.com/961691","tags":["report"]},{"url":"https://bugzilla.suse.com/962320","tags":["report"]},{"url":"https://bugzilla.suse.com/963782","tags":["report"]},{"url":"https://bugzilla.suse.com/964411","tags":["report"]},{"url":"https://bugzilla.suse.com/964413","tags":["report"]},{"url":"https://bugzilla.suse.com/967969","tags":["report"]},{"url":"https://bugzilla.suse.com/969121","tags":["report"]},{"url":"https://bugzilla.suse.com/969122","tags":["report"]},{"url":"https://bugzilla.suse.com/969350","tags":["report"]},{"url":"https://bugzilla.suse.com/970036","tags":["report"]},{"url":"https://bugzilla.suse.com/970037","tags":["report"]},{"url":"https://bugzilla.suse.com/975128","tags":["report"]},{"url":"https://bugzilla.suse.com/975136","tags":["report"]},{"url":"https://bugzilla.suse.com/975700","tags":["report"]},{"url":"https://bugzilla.suse.com/976109","tags":["report"]},{"url":"https://bugzilla.suse.com/978158","tags":["report"]},{"url":"https://bugzilla.suse.com/978160","tags":["report"]},{"url":"https://bugzilla.suse.com/980711","tags":["report"]},{"url":"https://bugzilla.suse.com/980723","tags":["report"]},{"url":"https://bugzilla.suse.com/981266","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2015-5745","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-7549","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8504","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8558","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8567","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8568","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8613","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8619","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8743","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8744","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8745","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8817","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8818","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1568","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1714","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1922","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1981","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2197","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2198","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2538","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2841","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2857","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2858","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-3710","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-3712","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4001","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4002","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4020","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4037","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4439","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4441","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4952","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2016-2197","description":"QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.","status":"published","published":"2016-12-29T22:00:00Z","modified":"2024-08-05T23:24:48.453Z","updated_at":"2026-11-02T14:33:33.07583Z"}],"euvd":[{"id":"EUVD-2016-3281","description":"QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.","status":"published","published":"2016-12-29T22:00:00Z","modified":"2024-08-05T23:24:48Z","updated_at":"2026-11-03T02:22:54.125931Z"}],"ghsa":[{"id":"GHSA-ph2m-74p3-x4w9","title":"QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null...","description":"QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.","status":"published","published":"2022-05-13T01:13:38Z","modified":"2023-02-01T05:04:19Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:50:08.898362Z"}],"nvd":[{"id":"CVE-2016-2197","description":"QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.","status":"published","published":"2016-12-29T22:59:00.45Z","modified":"2026-06-17T00:43:39.117Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:03:33.686843Z"}],"osv":[{"id":"CVE-2016-2197","description":"QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.","status":"published","published":"2016-12-29T22:59:00.45Z","modified":"2026-10-24T10:30:33.742726023Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:02.114472Z"},{"id":"DEBIAN-CVE-2016-2197","description":"QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.","status":"published","published":"2016-12-29T22:59:00.45Z","modified":"2026-09-22T07:01:36.249114772Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:27.323751Z"},{"id":"MGASA-2016-0176","title":"Updated qemu packages fix security vulnerabilities","description":"Updated qemu packages fix security vulnerabilities:\n\nAn out-of-bounds flaw was found in the QEMU emulator built using\n'address_space_translate' to map an address to a MemoryRegionSection. The\nflaw could occur while doing pci_dma_read/write calls, resulting in an\nout-of-bounds read-write access error. A privileged user inside a guest could\nuse this flaw to crash the guest instance (denial of service) (CVE-2015-8817,\nCVE-2015-8818).\n\nA NULL-pointer dereference flaw was found in the QEMU emulator built with TPR\noptimization for 32-bit Windows guests support. The flaw occurs when doing\nI/O-port write operations from the HMP interface. The 'current_cpu' value\nremains null because it is not called from the cpu_exec() loop, and\ndereferencing it results in the flaw. An attacker with access to the HMP\ninterface could use this flaw to crash the QEMU instance (denial of service)\n(CVE-2016-1922).\n\nIt was discovered that QEMU incorrectly handled the e1000 device. An\nattacker inside the guest could use this issue to cause QEMU to crash,\nresulting in a denial of service (CVE-2016-1981).\n\nZuozhi Fzz discovered that QEMU incorrectly handled IDE AHCI emulation. An\nattacker inside the guest could use this issue to cause QEMU to crash,\nresulting in a denial of service (CVE-2016-2197).\n\nZuozhi Fzz discovered that QEMU incorrectly handled USB EHCI emulation. An\nattacker inside the guest could use this issue to cause QEMU to crash,\nresulting in a denial of service (CVE-2016-2198).\n\nZuozhi Fzz discovered that QEMU incorrectly handled USB OHCI emulation\nsupport. A privileged attacker inside the guest could use this issue to\ncause QEMU to crash, resulting in a denial of service (CVE-2016-2391).\n\nQinghao Tang discovered that QEMU incorrectly handled USB Net emulation\nsupport. A privileged attacker inside the guest could use this issue to\ncause QEMU to crash, resulting in a denial of service (CVE-2016-2392).\n\nQinghao Tang discovered that QEMU incorrectly handled USB Net emulation\nsupport. A privileged attacker inside the guest could use this issue to\ncause QEMU to crash, resulting in a denial of service, or possibly leak\nhost memory bytes (CVE-2016-2538).\n\nHongke Yang discovered that QEMU incorrectly handled NE2000 emulation\nsupport. A privileged attacker inside the guest could use this issue to\ncause QEMU to crash, resulting in a denial of service (CVE-2016-2841).\n\nLing Liu discovered that QEMU incorrectly handled IP checksum routines. An\nattacker inside the guest could use this issue to cause QEMU to crash,\nresulting in a denial of service, or possibly leak host memory bytes\n(CVE-2016-2857).\n\nIt was discovered that QEMU incorrectly handled the PRNG back-end support.\nAn attacker inside the guest could use this issue to cause QEMU to crash,\nresulting in a denial of service (CVE-2016-2858).\n\nWei Xiao and Qinghao Tang discovered that QEMU incorrectly handled access\nin the VGA module. A privileged attacker inside the guest could use this\nissue to cause QEMU to crash, resulting in a denial of service, or possibly\nexecute arbitrary code on the host. In the default installation, when QEMU\nis used with libvirt, attackers would be isolated by the libvirt AppArmor\nprofile (CVE-2016-3710).\n\nZuozhi Fzz discovered that QEMU incorrectly handled access in the VGA\nmodule. A privileged attacker inside the guest could use this issue to\ncause QEMU to crash, resulting in a denial of service, or possibly\nexecute arbitrary code on the host. In the default installation, when QEMU\nis used with libvirt, attackers would be isolated by the libvirt AppArmor\nprofile (CVE-2016-3712).\n\nOleksandr Bazhaniuk discovered that QEMU incorrectly handled Luminary\nMicro Stellaris ethernet controller emulation. A remote attacker could use\nthis issue to cause QEMU to crash, resulting in a denial of service\n(CVE-2016-4001).\n\nOleksandr Bazhaniuk discovered that QEMU incorrectly handled MIPSnet\ncontroller emulation. A remote attacker could use this issue to cause QEMU\nto crash, resulting in a denial of service (CVE-2016-4002).\n\nDonghai Zdh discovered that QEMU incorrectly handled the Task Priority\nRegister(TPR). A privileged attacker inside the guest could use this issue\nto possibly leak host memory bytes (CVE-2016-4020).\n\nDu Shaobo discovered that QEMU incorrectly handled USB EHCI emulation\nsupport. A privileged attacker inside the guest could use this issue to\ncause QEMU to consume resources, resulting in a denial of service\n(CVE-2016-4037).\n\nThe qemu package has been updated to version 2.4.1 and patched to fix these\nissues.\n","status":"published","published":"2016-05-18T20:14:22Z","modified":"2026-04-16T06:24:31.660709406Z","updated_at":"2026-11-02T15:49:39.792687Z"},{"id":"SUSE-SU-2016:1703-1","title":"Security update for qemu","description":"qemu was updated to fix 29 security issues.\n\nThese security issues were fixed:\n- CVE-2016-4439: Avoid OOB access in 53C9X emulation (bsc#980711)\n- CVE-2016-4441: Avoid OOB access in 53C9X emulation (bsc#980723)\n- CVE-2016-4952: Avoid OOB access in Vmware PV SCSI emulation (bsc#981266)\n- CVE-2015-8817: Avoid OOB access in PCI dma I/O (bsc#969121)\n- CVE-2015-8818: Avoid OOB access in PCI dma I/O (bsc#969122)\n- CVE-2016-3710: Fixed VGA emulation based OOB access with potential for guest escape (bsc#978158)\n- CVE-2016-3712: Fixed VGa emulation based DOS and OOB read access exploit (bsc#978160)\n- CVE-2016-4037: Fixed USB ehci based DOS (bsc#976109)\n- CVE-2016-2538: Fixed potential OOB access in USB net device emulation (bsc#967969)\n- CVE-2016-2841: Fixed OOB access / hang in ne2000 emulation (bsc#969350)\n- CVE-2016-2858: Avoid potential DOS when using QEMU pseudo random number generator (bsc#970036)\n- CVE-2016-2857: Fixed OOB access when processing IP checksums (bsc#970037)\n- CVE-2016-4001: Fixed OOB access in Stellaris enet emulated nic (bsc#975128)\n- CVE-2016-4002: Fixed OOB access in MIPSnet emulated controller (bsc#975136)\n- CVE-2016-4020: Fixed possible host data leakage to guest from TPR access (bsc#975700)\n- CVE-2016-2197: Prevent AHCI NULL pointer dereference when using FIS CLB engine (bsc#964411)\n- CVE-2015-5745: Buffer overflow in virtio-serial (bsc#940929).\n- CVE-2015-7549: PCI null pointer dereferences (bsc#958917).\n- CVE-2015-8504: VNC floating point exception (bsc#958491).\n- CVE-2015-8558: Infinite loop in ehci_advance_state resulting in DoS (bsc#959005).\n- CVE-2015-8567: A guest repeatedly activating a vmxnet3 device can leak host memory (bsc#959386).\n- CVE-2015-8568: A guest repeatedly activating a vmxnet3 device can leak host memory (bsc#959386).\n- CVE-2015-8613: Wrong sized memset in megasas command handler (bsc#961358).\n- CVE-2015-8619: Potential DoS for long HMP sendkey command argument (bsc#960334).\n- CVE-2015-8743: OOB memory access in ne2000 ioport r/w functions (bsc#960725).\n- CVE-2015-8744: Incorrect l2 header validation could have lead to a crash via assert(2) call (bsc#960835).\n- CVE-2015-8745: Reading IMR registers could have lead to a crash via assert(2) call (bsc#960708).\n- CVE-2016-1568: AHCI use-after-free in aio port commands (bsc#961332).\n- CVE-2016-1714: Potential OOB memory access in processing firmware configuration (bsc#961691).\n- CVE-2016-1922: NULL pointer dereference when processing hmp i/o command (bsc#962320).\n- CVE-2016-1981: Potential DoS (infinite loop) in e1000 device emulation by malicious privileged user within guest (bsc#963782).\n- CVE-2016-2198: Malicious privileged guest user were able to cause DoS by writing to read-only EHCI capabilities registers (bsc#964413).\n\nThis non-security issue was fixed\n- bsc#886378: qemu truncates vhd images in virt-rescue\n","status":"published","published":"2016-06-29T05:47:55Z","modified":"2026-02-04T04:36:14.909397Z","updated_at":"2026-11-02T15:53:43.438985Z"}]}}