5.5

CVE-2010-4247: citrix xen Improper Input Validation

CVSS: 5.5v2.0MediumModified
Published 11-01-2011Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2010-4247 is a medium (CVSS 5.5) Improper Input Validation vulnerability in citrix xen. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.2% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v2.0 (NVD)
EPSS score
0.73%
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-2011:0004

Timeline

  1. 11-01-2011
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

The do_block_io_op function in (1) drivers/xen/blkback/blkback.c and (2) drivers/xen/blktap/blktap.c in Xen before 3.4.0 for the Linux kernel 2.6.18, and possibly other versions, allows guest OS users to cause a denial of service (infinite loop and CPU consumption) via a large production request index to the blkback or blktap back-end drivers. NOTE: some of these details are obtained from third party information.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.73%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

0.00 pp

From 0.73% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.73%

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

Citrix1 product
  • xen≤ 3.3.2 | 3.0.2 | 3.0.3 | 3.0.4 | 3.1.3 | 3.1.4 | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.3.0 | 3.3.1

1 vendor · 1 product

References

13 links
Show all 13 references