{"id":"CVE-2015-4037","aliases":["DEBIAN-CVE-2015-4037","DSA-3284-1","DSA-3285-1","EUVD-2015-4065","GHSA-4xwp-3m3p-vvgr","MGASA-2015-0310","SUSE-SU-2015:1519-1","SUSE-SU-2015:1853-1","SUSE-SU-2015:1894-1","SUSE-SU-2015:1908-1","SUSE-SU-2015:1952-1","UBUNTU-CVE-2015-4037","USN-2630-1","openSUSE-SU-2024:10196-1"],"status":"published","title":"The slirp_smb function in net/slirp.c in QEMU 2.3.0 and earlier creates temporary files with...","description":"The slirp_smb function in net/slirp.c in QEMU 2.3.0 and earlier creates temporary files with predictable names, which allows local users to cause a denial of service (instantiation failure) by creating /tmp/qemu-smb.*-* files before the program.","severity":{"version":"2.0","score":1.9,"vector":"AV:L/AC:M/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00375,"percentile":0.31759,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-17"],"published":"2015-05-23T00:00:00Z","modified":"2026-09-09T06:47:32Z","fixes":[{"ecosystem":"Debian:12","package":"qemu","fixed_in":["1:2.3+dfsg-5"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"qemu","fixed_in":["1:2.3+dfsg-5"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"qemu","fixed_in":["1:2.3+dfsg-5"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"qemu","fixed_in":["2.0.0+dfsg-2ubuntu1.13"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.3+dfsg-5"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.3+dfsg-5"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.3+dfsg-5"}]}]},{"source":"osv","ecosystem":"Debian:8","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.1+dfsg-12+deb8u1"}]}],"versions":["1:2.1+dfsg-11","1:2.1+dfsg-12","1:2.1+dfsg-12~bpo70+1"],"bundled":6},{"source":"osv","ecosystem":"Debian:7","package":"qemu-kvm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.2+dfsg-6+deb7u8"}]}],"versions":["1.1.2+dfsg-6","1.1.2+dfsg-6+deb7u1","1.1.2+dfsg-6+deb7u2","1.1.2+dfsg-6+deb7u3","1.1.2+dfsg-6+deb7u4","1.1.2+dfsg-6+deb7u5","1.1.2+dfsg-6+deb7u6","1.1.2+dfsg-6+deb7u7","1.1.2+dfsg-6+deb7u7~bpo60+1"],"bundled":2},{"source":"osv","ecosystem":"Mageia:4","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.2-1.12.mga4"}]}],"bundled":9},{"source":"osv","ecosystem":"Mageia:5","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.3-2.3.mga5"}]}],"bundled":9},{"source":"osv","ecosystem":"SUSE:Linux 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l":"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-2016-2198","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2270","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2271","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2391","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2392","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-2016-4439","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4441","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-5238","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-5338","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-6258","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-6259","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-6351","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7092","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7093","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7094","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2015-4037","description":"The 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in QEMU 2.3.0 and earlier creates temporary files with predictable names, which allows local users to cause a denial of service (instantiation failure) by creating /tmp/qemu-smb.*-* files before the program.","status":"published","published":"2015-08-26T19:59:05Z","modified":"2026-04-16T06:16:26.518947318Z","updated_at":"2026-11-02T15:44:00.594921Z"},{"id":"DEBIAN-CVE-2015-4037","description":"The slirp_smb function in net/slirp.c in QEMU 2.3.0 and earlier creates temporary files with predictable names, which allows local users to cause a denial of service (instantiation failure) by creating /tmp/qemu-smb.*-* files before the program.","status":"published","published":"2015-08-26T19:59:05.737Z","modified":"2026-09-09T06:47:32.101240195Z","updated_at":"2026-11-02T15:45:26.752992Z"},{"id":"DSA-3284-1","title":"qemu - security update","status":"published","published":"2015-06-13T00:00:00Z","modified":"2026-03-09T01:20:29.522543Z","updated_at":"2026-11-02T15:46:16.199525Z"},{"id":"DSA-3285-1","title":"qemu-kvm - security update","status":"published","published":"2015-06-13T00:00:00Z","modified":"2026-03-09T01:19:12.03914Z","updated_at":"2026-11-02T15:46:16.199525Z"},{"id":"MGASA-2015-0310","title":"Updated qemu package fixes security vulnerability","description":"Matt Tait discovered that QEMU incorrectly handled the virtual PCNET\ndriver. A malicious guest could use this issue to cause a denial of\nservice, or possibly execute arbitrary code on the host as the user\nrunning the QEMU process (CVE-2015-3209).\n\nKurt Seifried discovered that QEMU incorrectly handled certain temporary\nfiles. A local attacker could use this issue to cause a denial of service\n(CVE-2015-4037).\n\nJan Beulich discovered that the QEMU Xen code incorrectly restricted write\naccess to the host MSI message data field. A malicious guest could use\nthis issue to cause a denial of service (CVE-2015-4103).\n\nJan Beulich discovered that the QEMU Xen code incorrectly restricted\naccess to the PCI MSI mask bits. A malicious guest could use this issue to\ncause a denial of service (CVE-2015-4104).\n\nJan Beulich discovered that the QEMU Xen code incorrectly handled MSI-X\nerror messages. A malicious guest could use this issue to cause a denial\nof service (CVE-2015-4105).\n\nJan Beulich discovered that the QEMU Xen code incorrectly restricted write\naccess to the PCI config space. A malicious guest could use this issue to\ncause a denial of service, obtain sensitive information, or possibly\nexecute arbitrary code (CVE-2015-4106).\n\nA heap buffer overflow flaw was found in the way QEMU's IDE subsystem\nhandled I/O buffer access while processing certain ATAPI commands.\nA privileged guest user in a guest with the CDROM drive enabled could\npotentially use this flaw to execute arbitrary code on the host with the\nprivileges of the host's QEMU process corresponding to the guest\n(CVE-2015-5154).\n\nAn out-of-bounds memory access flaw, leading to memory corruption or\npossibly an information leak, was found in QEMU's pit_ioport_read()\nfunction. A privileged guest user in a QEMU guest, which had QEMU PIT\nemulation enabled, could potentially, in rare cases, use this flaw to\nexecute arbitrary code on the host with the privileges of the hosting QEMU\nprocess (CVE-2015-3214).\n\nQemu emulator built with the virtio-serial vmchannel support is vulnerable\nto a buffer overflow issue. It could occur while exchanging virtio control\nmessages between guest \u0026 the host. A malicious guest could use this flaw\nto corrupt few bytes of Qemu memory area, potentially crashing the Qemu\nprocess (CVE-2015-5745).\n","status":"published","published":"2015-08-11T20:22:53Z","modified":"2026-04-16T06:23:35.491063273Z","updated_at":"2026-11-02T15:49:39.792687Z"},{"id":"openSUSE-SU-2024:10196-1","title":"xen-4.7.0_12-1.3 on GA media","description":"These are all security issues fixed in the xen-4.7.0_12-1.3 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2025-05-07T18:08:39.408456Z","updated_at":"2026-11-02T16:58:33.135986Z"},{"id":"SUSE-SU-2015:1519-1","title":"Security update for qemu","description":"qemu was updated to fix two security issues and augments one non-security bug fix.\n\nThe following vulnerabilities were fixed:\n\n* CVE-2015-3209: heap overflow in qemu pcnet controller allowing guest to host escape (XSA-135) (bsc#932770)\n* CVE-2015-4037: Avoid predictable directory name for smb config (bsc#932267)\n\nThe fix for the following non-security bug was improved:\n\n* bsc#893892: Use improved upstream patch for display issue affecting installs of SLES 11 VMs on SLES 12\n","status":"published","published":"2015-06-08T14:28:12Z","modified":"2026-02-04T04:36:23.556547Z","updated_at":"2026-11-02T15:53:43.030986Z"},{"id":"SUSE-SU-2015:1853-1","title":"Security update for xen","description":"xen was updated to fix nine security issues.\n\nThese security issues were fixed:\n- CVE-2015-4037: The slirp_smb function in net/slirp.c created temporary files with predictable names, which allowed local users to cause a denial of service (instantiation failure) by creating /tmp/qemu-smb.*-* files before the program (bsc#932267).\n- CVE-2014-0222: Integer overflow in the qcow_open function allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (bsc#877642).\n- CVE-2015-7835: Uncontrolled creation of large page mappings by PV guests (bsc#950367).\n- CVE-2015-7311: libxl in Xen did not properly handle the readonly flag on disks when using the qemu-xen device model, which allowed local guest users to write to a read-only disk image (bsc#947165).\n- CVE-2015-5239: Integer overflow in vnc_client_read() and protocol_client_msg() (bsc#944463).\n- CVE-2015-6815: With e1000 NIC emulation support it was possible to enter an infinite loop (bsc#944697).\n- CVE-2015-7969: Leak of main per-domain vcpu pointer array leading to denial of service (bsc#950703).\n- CVE-2015-7969: Leak of per-domain profiling- related vcpu pointer array leading to denial of service (bsc#950705).\n- CVE-2015-7971: Some pmu and profiling hypercalls log without rate limiting (bsc#950706).\n\nThese non-security issues were fixed:\n- bsc#907514: Bus fatal error: SLES 12 sudden reboot has been observed\n- bsc#910258: SLES12 Xen host crashes with FATAL NMI after shutdown of guest with VT-d NIC\n- bsc#918984: Bus fatal error: SLES11-SP4 sudden reboot has been observed\n- bsc#923967: Partner-L3: Bus fatal error: SLES11-SP3 sudden reboot has been observed\n- bsc#941074: Device 51728 could not be connected. Hotplug scripts not working\n","status":"published","published":"2015-10-29T16:37:05Z","modified":"2026-02-04T02:39:12.647981Z","updated_at":"2026-11-02T15:53:43.030986Z"},{"id":"SUSE-SU-2015:1894-1","title":"Security update for xen","description":"xen was updated to version 4.4.3 to fix nine security issues.\n\nThese security issues were fixed:\n- CVE-2015-4037: The slirp_smb function in net/slirp.c created temporary files with predictable names, which allowed local users to cause a denial of service (instantiation failure) by creating /tmp/qemu-smb.*-* files before the program (bsc#932267).\n- CVE-2014-0222: Integer overflow in the qcow_open function allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (bsc#877642).\n- CVE-2015-7835: Uncontrolled creation of large page mappings by PV guests (bsc#950367).\n- CVE-2015-7311: libxl in Xen did not properly handle the readonly flag on disks when using the qemu-xen device model, which allowed local guest users to write to a read-only disk image (bsc#947165).\n- CVE-2015-5239: Integer overflow in vnc_client_read() and protocol_client_msg() (bsc#944463).\n- CVE-2015-6815: With e1000 NIC emulation support it was possible to enter an infinite loop (bsc#944697).\n- CVE-2015-7969: Leak of main per-domain vcpu pointer array leading to denial of service (bsc#950703).\n- CVE-2015-7969: Leak of per-domain profiling- related vcpu pointer array leading to denial of service (bsc#950705).\n- CVE-2015-7971: Some pmu and profiling hypercalls log without rate limiting (bsc#950706).\n\nThese non-security issues were fixed:\n- bsc#907514: Bus fatal error: SLES 12 sudden reboot has been observed\n- bsc#910258: SLES12 Xen host crashes with FATAL NMI after shutdown of guest with VT-d NIC\n- bsc#918984: Bus fatal error: SLES11-SP4 sudden reboot has been observed\n- bsc#923967: Partner-L3: Bus fatal error: SLES11-SP3 sudden reboot has been observed\n- bnc#901488: Intel ixgbe driver assigns rx/tx queues per core resulting in irq problems on servers with a large amount of CPU cores\n- bsc#945167: Running command: xl pci-assignable-add 03:10.1 secondly show errors\n- bsc#949138: Setting vcpu affinity under Xen causes libvirtd abort\n- bsc#949549: xm create hangs when maxmen value is enclosed in quotes\n","status":"published","published":"2015-10-29T16:40:59Z","modified":"2026-02-04T03:28:52.772511Z","updated_at":"2026-11-02T15:53:43.030986Z"},{"id":"SUSE-SU-2015:1908-1","title":"Security update for xen","description":"xen was updated to version 4.4.3 to fix nine security issues.\n\nThese security issues were fixed:\n- CVE-2015-4037: The slirp_smb function in net/slirp.c created temporary files with predictable names, which allowed local users to cause a denial of service (instantiation failure) by creating /tmp/qemu-smb.*-* files before the program (bsc#932267).\n- CVE-2014-0222: Integer overflow in the qcow_open function allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (bsc#877642).\n- CVE-2015-7835: Uncontrolled creation of large page mappings by PV guests (bsc#950367).\n- CVE-2015-7311: libxl in Xen did not properly handle the readonly flag on disks when using the qemu-xen device model, which allowed local guest users to write to a read-only disk image (bsc#947165).\n- CVE-2015-5239: Integer overflow in vnc_client_read() and protocol_client_msg() (bsc#944463).\n- CVE-2015-6815: With e1000 NIC emulation support it was possible to enter an infinite loop (bsc#944697).\n- CVE-2015-7969: Leak of main per-domain vcpu pointer array leading to denial of service (bsc#950703).\n- CVE-2015-7969: Leak of per-domain profiling- related vcpu pointer array leading to denial of service (bsc#950705).\n- CVE-2015-7971: Some pmu and profiling hypercalls log without rate limiting (bsc#950706).\n\nThese non-security issues were fixed:\n- bsc#907514: Bus fatal error: SLES 12 sudden reboot has been observed\n- bsc#910258: SLES12 Xen host crashes with FATAL NMI after shutdown of guest with VT-d NIC\n- bsc#918984: Bus fatal error: SLES11-SP4 sudden reboot has been observed\n- bsc#923967: Partner-L3: Bus fatal error: SLES11-SP3 sudden reboot has been observed\n- bnc#901488: Intel ixgbe driver assigns rx/tx queues per core resulting in irq problems on servers with a large amount of CPU cores\n- bsc#945167: Running command: xl pci-assignable-add 03:10.1 secondly show errors\n- bsc#949138: Setting vcpu affinity under Xen causes libvirtd abort\n","status":"published","published":"2015-10-29T16:40:54Z","modified":"2026-02-04T02:18:33.552295Z","updated_at":"2026-11-02T15:53:43.030986Z"},{"id":"SUSE-SU-2015:1952-1","title":"Security update for xen","description":"xen was updated to fix eight security issues.\n\nThese security issues were fixed:\n- CVE-2015-4037: The slirp_smb function in net/slirp.c created temporary files with predictable names, which allowed local users to cause a denial of service (instantiation failure) by creating /tmp/qemu-smb.*-* files before the program (bsc#932267).\n- CVE-2014-0222: Integer overflow in the qcow_open function allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (bsc#877642).\n- CVE-2015-7835: Uncontrolled creation of large page mappings by PV guests (bsc#950367).\n- CVE-2015-5239: Integer overflow in vnc_client_read() and protocol_client_msg() (bsc#944463).\n- CVE-2015-6815: With e1000 NIC emulation support it was possible to enter an infinite loop (bsc#944697).\n- CVE-2015-7969: Leak of main per-domain vcpu pointer array leading to denial of service (bsc#950703).\n- CVE-2015-7969: Leak of per-domain profiling- related vcpu pointer array leading to denial of service (bsc#950705).\n- CVE-2015-7971: Some pmu and profiling hypercalls log without rate limiting (bsc#950706).\n","status":"published","published":"2015-10-29T16:04:44Z","modified":"2026-02-04T04:13:37.011328Z","updated_at":"2026-11-02T15:53:43.030986Z"},{"id":"UBUNTU-CVE-2015-4037","description":"The slirp_smb function in net/slirp.c in QEMU 2.3.0 and earlier creates temporary files with predictable names, which allows local users to cause a denial of service (instantiation failure) by creating /tmp/qemu-smb.*-* files before the program.","status":"published","published":"2015-05-23T00:00:00Z","modified":"2026-02-04T02:53:42.102767Z","updated_at":"2026-11-02T15:54:10.045446Z"},{"id":"USN-2630-1","title":"qemu, qemu-kvm vulnerabilities","description":"Matt Tait discovered that QEMU incorrectly handled the virtual PCNET\ndriver. A malicious guest could use this issue to cause a denial of\nservice, or possibly execute arbitrary code on the host as the user running\nthe QEMU process. In the default installation, when QEMU is used with\nlibvirt, attackers would be isolated by the libvirt AppArmor profile.\n(CVE-2015-3209)\n\nKurt Seifried discovered that QEMU incorrectly handled certain temporary\nfiles. A local attacker could use this issue to cause a denial of service.\n(CVE-2015-4037)\n\nJan Beulich discovered that the QEMU Xen code incorrectly restricted write\naccess to the host MSI message data field. A malicious guest could use this\nissue to cause a denial of service. This issue only applied to Ubuntu 14.04\nLTS, Ubuntu 14.10 and Ubuntu 15.04. (CVE-2015-4103)\n\nJan Beulich discovered that the QEMU Xen code incorrectly restricted access\nto the PCI MSI mask bits. A malicious guest could use this issue to cause a\ndenial of service. This issue only applied to Ubuntu 14.04 LTS, Ubuntu\n14.10 and Ubuntu 15.04. (CVE-2015-4104)\n\nJan Beulich discovered that the QEMU Xen code incorrectly handled MSI-X\nerror messages. A malicious guest could use this issue to cause a denial of\nservice. This issue only applied to Ubuntu 14.04 LTS, Ubuntu 14.10 and\nUbuntu 15.04. (CVE-2015-4105)\n\nJan Beulich discovered that the QEMU Xen code incorrectly restricted write\naccess to the PCI config space. A malicious guest could use this issue to\ncause a denial of service, obtain sensitive information, or possibly\nexecute arbitrary code. This issue only applied to Ubuntu 14.04 LTS,\nUbuntu 14.10 and Ubuntu 15.04. (CVE-2015-4106)\n","status":"published","published":"2015-06-10T14:30:07Z","modified":"2026-02-10T04:40:54Z","updated_at":"2026-11-02T16:58:09.227524Z"}]}}