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.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Qemu | Qemu | * | 2.3.0 (including) |
| Qemu | Ubuntu | esm-infra-legacy/trusty | * |
| Qemu | Ubuntu | trusty | * |
| Qemu | Ubuntu | trusty/esm | * |
| Qemu | Ubuntu | upstream | * |
| Qemu | Ubuntu | utopic | * |
| Qemu | Ubuntu | vivid | * |
| Qemu-kvm | Ubuntu | precise | * |
| Qemu-kvm | Ubuntu | upstream | * |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160058.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160414.html
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00027.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00015.html
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html
- http://www.debian.org/security/2015/dsa-3284
- http://www.debian.org/security/2015/dsa-3285
- http://www.openwall.com/lists/oss-security/2015/05/13/7
- http://www.openwall.com/lists/oss-security/2015/05/16/5
- http://www.openwall.com/lists/oss-security/2015/05/23/4
- http://www.securityfocus.com/bid/74809
- http://www.securitytracker.com/id/1032547
- http://www.ubuntu.com/usn/USN-2630-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1222892
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160058.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160414.html
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00027.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00015.html
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html
- http://www.debian.org/security/2015/dsa-3284
- http://www.debian.org/security/2015/dsa-3285
- http://www.openwall.com/lists/oss-security/2015/05/13/7
- http://www.openwall.com/lists/oss-security/2015/05/16/5
- http://www.openwall.com/lists/oss-security/2015/05/23/4
- http://www.securityfocus.com/bid/74809
- http://www.securitytracker.com/id/1032547
- http://www.ubuntu.com/usn/USN-2630-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1222892