CVE-2015-1779
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 6.57% probability · 94th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- qemu/qemu · canonical/ubuntu linux · debian/debian linux · fedoraproject/fedora · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server tus · redhat/enterprise linux workstation · redhat/virtualization · oracle/linux
- Source
- secalert@redhat.com
EPSS 6.6% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00033.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.htmlBroken Link
- http://rhn.redhat.com/errata/RHSA-2015-1931.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1943.htmlThird Party Advisory
- http://www.debian.org/security/2015/dsa-3259Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/03/24/9Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/04/09/6Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlThird Party Advisory
- http://www.securityfocus.com/bid/73303Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1033975Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2608-1Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04894.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.htmlMailing List, Patch, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.htmlMailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201602-01Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00033.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.htmlBroken Link
- http://rhn.redhat.com/errata/RHSA-2015-1931.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1943.htmlThird Party Advisory
- http://www.debian.org/security/2015/dsa-3259Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/03/24/9Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/04/09/6Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlThird Party Advisory
- http://www.securityfocus.com/bid/73303Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1033975Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2608-1Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.