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CVE-2013-4345
Off-by-one error in the get_prng_bytes function in crypto/ansi_cprng.c in the Linux kernel through 3.11.4 makes it easier for…
- 5.8MediumCVSS base score
- 3.2%Exploitation in 30 daysEPSS · top 12% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Off-by-one error in the get_prng_bytes function in crypto/ansi_cprng.c in the Linux kernel through 3.11.4 makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms via multiple requests for small amounts of data, leading to improper management of the state of the consumed data.
Timeline
ID reserved
By redhat
- 4 months later
· 4 months later
Published
- 11 years later
· 11 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 | Medium5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.
Affected products
n/a
- affected n/a
References
18
- USN-2065-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1007690 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2110-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2013:1490 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2013:1645 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-2076-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2158-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2070-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2071-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2109-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2013:1449 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 62740 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- USN-2074-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2068-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [linux-crypto] 20130917 [PATCH] ansi_cprng: Fix off by one error in non-block size request (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-2072-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2075-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2064-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_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-2013-4231 (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-2013-4345)Record last updated .