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CVE-2007-2453
The random number feature in Linux kernel 2.6 before 2.6.20.13, and 2.6.21.x before 2.6.21.4, (1) does not properly seed pools when there…
Low1.2EPSS 0.37%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The random number feature in Linux kernel 2.6 before 2.6.20.13, and 2.6.21.x before 2.6.21.4, (1) does not properly seed pools when there is no entropy, or (2) uses an incorrect cast when extracting entropy, which might cause the random number generator to provide the same values after reboots on systems without an entropy source.
Timeline
ID reserved
By redhat
- 40 days later
· 40 days later
Published
- 17 years later
· 17 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 | Low1.2 | AV:L/AC:H/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.37% · top 69% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.2.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (27)
- USN-470-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 1018248 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 26664 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SA:2007:051 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- ADV-2007-2105 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- SUSE-SA:2007:043 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 24390 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- MDKSA-2007:171 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- kernel-randomnumber-weak-security(34781) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- DSA-1356 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- MDKSA-2007:216 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 26620 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- USN-489-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- MDKSA-2007:196 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- [linux-kernel] 20070608 Linux 2.6.21.4 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 25961 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 37114 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 25596 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2007:0376 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-486-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 26450 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.4 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 25700 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [linux-kernel] 20070608 Linux 2.6.20.13 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- oval:org.mitre.oval:def:9960 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 26139 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 26133 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2007-2453)Record last updated .