CVE-2010-4247
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…
- 5.5MediumCVSS base score
- 0.73%Exploitation in 30 daysEPSS · top 46% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By redhat
- 56 days later
· 56 days later
Published
- 14 years later
· 14 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.5 | AV:A/AC:L/Au:S/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 0.73% · top 46% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
n/a
- affected n/a
References
13
- 42789 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2011-0024 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- RHSA-2011:0004 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 45029 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 46397 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 35093 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=656206 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/77f831cbb91d (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20101123 CVE request: xen: request-processing loop is unbounded in blkback (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/7070d34f251c (opens in a new tab)x_refsource_MISCx_transferred
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20101124 Re: CVE request: xen: request-processing loop is unbounded in blkback (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2010-4220 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2010-4247)Record last updated .