CVE-2015-5963: canonical ubuntu_linux Resource Management Errors
Vulnerability summary
CVE-2015-5963 is a medium (CVSS 5.0) Resource Management Errors vulnerability in canonical ubuntu_linux. EPSS estimates a 5.21% chance of exploitation in the next 30 days, higher than 92.4% of scored vulnerabilities.
Severe, CVSS 8.7 (OSV · Pypi); no exploitation reported by the 5 checked sources; EPSS 5% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 19 · Related 13Timeline
- 24-08-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
contrib.sessions.middleware.SessionMiddleware in Django 1.8.x before 1.8.4, 1.7.x before 1.7.10, 1.4.x before 1.4.22, and possibly other versions allows remote attackers to cause a denial of service (session store consumption or session record removal) via a large number of requests to contrib.auth.views.logout, which triggers the creation of an empty session record.
CVSS metrics
3 scores · 2 sources · 3 versionsEPSS trend
Probability
5.21%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
No change 0.00 pp
From 5.21% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not 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.
Redhat3 products
- python-django< 0:1.8.4-1.el7
- python-django-bash-completion< 0:1.8.4-1.el7
- python-django-doc< 0:1.8.4-1.el7
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 15.04
Debian1 product
- python-django< 1.7.10-1
Djangoproject1 product
- djangoEOL1.4 | 1.4.1 | 1.4.2 | 1.4.4 | 1.4.5 | 1.4.6 | 1.4.7 | 1.4.8 | 1.4.9 | 1.4.10 | 1.4.11 | 1.4.12 | 1.4.13 | 1.4.14 | 1.4.17 | 1.4.19 | 1.4.20 | 1.4.21 | 1.7:beta1 | 1.7:beta2 | 1.7:beta3 | 1.7:beta4 | 1.7:rc1 | 1.7:rc2 | 1.7:rc3 | 1.7.1 | 1.7.2 | 1.7.3 | 1.7.4 | 1.7.5 | 1.7.6 | 1.7.7 | 1.7.8 | 1.7.9 | 1.8:beta1 | 1.8.0 | 1.8.1 | 1.8.2 | 1.8.3
Oracle1 product
- solarisEOL11.3
PyPI1 product
- django≥ 1.8, < 1.8.4 | ≥ 1.7, < 1.7.10 | ≥ 1.4, < 1.4.22
Ubuntu1 product
- python-django< 1.6.1-2ubuntu0.10
7 vendors · 9 products
References
33 links- lists.fedoraproject.org/pipermail/package-announce/2015-November/172084.htmlVendor AdvisoryX Refsource FEDORAWEB
Show all 33 references
- www.djangoproject.com/weblog/2015/aug/18/security-releases/X Refsource MISCPatchVendor AdvisoryARTICLEREPORT
- www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlX Refsource CONFIRMThird Party AdvisoryWEB
- github.com/django/djangoPACKAGE