CVE-2015-5143: canonical ubuntu_linux Resource Management Errors
Vulnerability summary
CVE-2015-5143 is a high (CVSS 7.8) Resource Management Errors vulnerability in canonical ubuntu_linux. EPSS estimates a 7.22% chance of exploitation in the next 30 days, higher than 94.3% of scored vulnerabilities.
Severe, CVSS 8.7 (OSV · Pypi); 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 7 · Related 4Timeline
- 14-07-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The session backends in Django before 1.4.21, 1.5.x through 1.6.x, 1.7.x before 1.7.9, and 1.8.x before 1.8.3 allows remote attackers to cause a denial of service (session store consumption) via multiple requests with unique session keys.
CVSS metrics
3 scores · 2 sources · 3 versionsEPSS trend
Probability
7.22%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
Decrease -0.05 pp
From 7.27% 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< 0:1.6.11-2.el7ost | < 0:1.6.11-1.el6ost
- python-django-bash-completion< 0:1.6.11-2.el7ost | < 0:1.6.11-1.el6ost
- python-django-doc< 0:1.6.11-2.el7ost | < 0:1.6.11-1.el6ost
Debian2 products
- python-django< 1.7.9-1
- debian_linuxEOL7.0 | 8.0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 15.04 | 15.10
Djangoproject1 product
- djangoEOL1.4.20 | 1.5 | 1.5:alpha | 1.5:beta | 1.5.1 | 1.5.2 | 1.5.3 | 1.5.4 | 1.5.5 | 1.5.6 | 1.5.7 | 1.5.8 | 1.5.9 | 1.5.10 | 1.5.11 | 1.5.12 | 1.6 | 1.6:beta1 | 1.6:beta2 | 1.6:beta3 | 1.6:beta4 | 1.6.1 | 1.6.2 | 1.6.3 | 1.6.4 | 1.6.5 | 1.6.6 | 1.6.7 | 1.6.8 | 1.6.9 | 1.6.10 | 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 | 1.8.0 | 1.8.1 | 1.8.2
Oracle1 product
- solarisEOL11.3
PyPI1 product
- django< 1.4.21 | ≥ 1.5, < 1.7.9 | ≥ 1.8, < 1.8.3
Ubuntu1 product
- python-django< 1.6.1-2ubuntu0.9
7 vendors · 10 products
References
31 links- lists.fedoraproject.org/pipermail/package-announce/2015-November/172084.htmlVendor AdvisoryX Refsource FEDORAWEB
- www.djangoproject.com/weblog/2015/jul/08/security-releases/X Refsource CONFIRMPatchVendor AdvisoryARTICLEREPORT
- www.debian.org/security/2015/dsa-3305Vendor AdvisoryX Refsource DEBIANThird Party AdvisoryWEBAdvisory
Show all 31 references
- www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlX Refsource CONFIRMThird Party AdvisoryWEB
- github.com/django/djangoPACKAGE