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Fencer Intel
low 1.9

CVE-2015-4037 json

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…

published 2015-08-26 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-4065

cvss
1.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

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.

Patch / fix

  • qemu Debian 14, Debian 13, Debian 12 1:2.3+dfsg-5

debian advisories DEBIAN-CVE-2015-4037

  • qemu Ubuntu 14.04 LTS 2.0.0+dfsg-2ubuntu1.13

ubuntu advisories UBUNTU-CVE-2015-4037

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • xen SLES for SAP 11 SP4, SLES 11 SP4, SLED 11 SP4 +1 more 4.4.3_02-26.2
  • xen SLES for SAP 12, SLES 12, SLED 12 +1 more 4.4.3_02-22.12.1
  • xen SLES for SAP 11 SP3, SLES 11 SP3-TERADATA, SLES 11 SP3 +2 more 4.2.5_14-18.2
  • qemu SLES for SAP 12, SLES 12, SLED 12 2.0.2-48.4.1
  • xen SLES 11 SP2-LTSS 4.1.6_08-20.1

suse advisories SUSE-SU-2015:1894-1SUSE-SU-2015:1908-1SUSE-SU-2015:1853-1SUSE-SU-2015:1952-1SUSE-SU-2015:1519-1

  • xen openSUSE Tumbleweed 4.7.0_12-1.3

opensuse advisories openSUSE-SU-2024:10196-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-4037 updated cvss 4.9

qemu: insecure temporary file use in /net/slirp.c

  • Red Hat Enterprise Linux 5 kvm Red Hat Enterprise Linux 6 qemu-img, qemu-kvm, qemu-kvm-tools, qemu-guest-agent, qemu-guest-agent-win32 Red Hat Enterprise Linux 7 qemu-img, qemu-kvm, libcacard, qemu-kvm-rhev, qemu-kvm-tools, libcacard-tools, +2 more Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) qemu-kvm-rhev Red Hat Enterprise Linux OpenStack Platform 6 (Juno) qemu-kvm-rhev Red Hat OpenStack Platform 4 qemu-kvm-rhev
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 1.9 AV:L/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.