qemu: insecure temporary file use in /net/slirp.c
Published Aug 26, 2015
1.9
LOWCVSS 2.0
EPSS 0.37%
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
kvm
Affected
Red Hat Enterprise Linux 6
qemu-kvm
Affected
Red Hat Enterprise Linux 7
qemu-guest-agent
Affected
Red Hat Enterprise Linux 7
qemu-kvm
Affected
Red Hat Enterprise Linux 7
qemu-kvm-rhev
Affected
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
qemu-kvm-rhev
Affected
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
qemu-kvm-rhev
Affected
Red Hat OpenStack Platform 4
qemu-kvm-rhev
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kvm | Affected | n/a |
| Red Hat Enterprise Linux 6 | qemu-kvm | Affected | n/a |
| Red Hat Enterprise Linux 7 | qemu-guest-agent | Affected | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm | Affected | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm-rhev | Affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) | qemu-kvm-rhev | Affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | qemu-kvm-rhev | Affected | n/a |
| Red Hat OpenStack Platform 4 | qemu-kvm-rhev | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5, the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7, and the versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.37% (0.00372) | 28.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.37% (0.00372) | 28.78th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00099) | 25.15th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (17)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160058.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160414.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00027.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00015.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html vendor-advisoryx_refsource_SUSE
- http://www.debian.org/security/2015/dsa-3284 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2015/dsa-3285 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2015/05/13/7 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2015/05/16/5 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2015/05/23/4 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/74809 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1032547 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2630-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-4037 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1222892 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-4037
- https://www.cve.org/CVERecord?id=CVE-2015-4037
Change history (0)
No recorded changes yet.