7.8

CVE-2013-1943: canonical ubuntu_linux Improper Input Validation

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2013-1943
Published 16-07-2013Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2013-1943 is a high (CVSS 7.8) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.6% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.45%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2013:0911

Timeline

  1. 16-07-2013
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The KVM subsystem in the Linux kernel before 3.0 does not check whether kernel addresses are specified during allocation of memory slots for use in a guest's physical address space, which allows local users to gain privileges or obtain sensitive information from kernel memory via a crafted application, related to arch/x86/kvm/paging_tmpl.h and virt/kvm/kvm_main.c.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

0.00 pp

From 0.45% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.45%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu7 products
  • linux< 3.11.0-12.19
  • linux-flo< 3.4.0-1.3
  • linux-goldfish< 3.4.0-1.7
  • linux-grouper< 3.1.10-8.28
  • linux-maguro< 3.0.0-3.18
Redhat2 products
Canonical1 product
Linux1 product

4 vendors · 11 products

References

10 links