Resource management error in QEMU - CVE-2015-1779
Published: January 12, 2016 / Updated: July 28, 2020
Vulnerability identifier: #VU32432
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2015-1779
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: QEMU
Affected software:
QEMU
QEMU
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to a crash the entire system.
The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) websocket payload or (2) HTTP headers section.
How to mitigate CVE-2015-1779
Install update from vendor's website.
Sources
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.html
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00033.html
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.html
- http://rhn.redhat.com/errata/RHSA-2015-1931.html
- http://rhn.redhat.com/errata/RHSA-2015-1943.html
- http://www.debian.org/security/2015/dsa-3259
- http://www.openwall.com/lists/oss-security/2015/03/24/9
- http://www.openwall.com/lists/oss-security/2015/04/09/6
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/73303
- http://www.securitytracker.com/id/1033975
- http://www.ubuntu.com/usn/USN-2608-1
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04894.html
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.html
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.html
- https://security.gentoo.org/glsa/201602-01