SB2015082605 - Input validation error in QEMU
Published: August 26, 2015 Updated: August 4, 2020
Security Bulletin ID
SB2015082605
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2015-4037)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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.
Remediation
Install update from vendor's website.
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