CVE-2015-1779: canonical ubuntu_linux Uncontrolled Resource Consumption
Vulnerability summary
CVE-2015-1779 is a high (CVSS 8.6) Uncontrolled Resource Consumption vulnerability in canonical ubuntu_linux. EPSS estimates a 6.57% chance of exploitation in the next 30 days, higher than 93.8% of scored vulnerabilities.
Severe, CVSS 8.6 (NVD); no exploitation reported by the 5 checked sources; EPSS 7% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 9 · Related 8Timeline
- 12-01-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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 metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated8.6HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated8.6HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS trend
Probability
6.57%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
No change 0.00 pp
From 6.57% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat22 products
- enterprise_linux_eus7.1 | 7.2 | 7.3 | 7.4 | 7.5 | 7.6 | 7.7
- enterprise_linux_server7.0
- enterprise_linux_server_aus7.3 | 7.4 | 7.6 | 7.7
- enterprise_linux_server_tus7.3 | 7.6 | 7.7
- enterprise_linux_workstation7.0
Debian2 products
- qemu< 1:2.3+dfsg-1
- debian_linuxEOL7.0 | 8.0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 14.10 | 15.04
Fedoraproject1 product
- fedoraEOL21 | 22
Mageia1 product
- qemu< 1.6.2-1.9.mga4
Oracle1 product
- linuxEOL7
Qemu1 product
- qemu≤ 2.2.1 | 2.3.0:rc0 | 2.3.0:rc1
Ubuntu1 product
- qemu< 2.0.0+dfsg-2ubuntu1.11
8 vendors · 30 products
References
33 links- lists.opensuse.org/opensuse-security-announce/2015-05/msg00033.htmlVendor AdvisoryX Refsource SUSEBroken Link
- lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.htmlMailing ListX Refsource MLISTPatchThird Party Advisory
- lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.htmlVendor AdvisoryX Refsource SUSEBroken Link
- lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory
- lists.gnu.org/archive/html/qemu-devel/2015-03/msg04894.htmlMailing ListX Refsource MLISTThird Party AdvisoryREPORT
Show all 33 references
- www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlX Refsource CONFIRMThird Party Advisory
- lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.htmlMailing ListX Refsource MLISTPatchThird Party Advisory
