CVE-2013-4345

CVE-2013-4345 is a medium-severity vulnerability in Redhat Enterprise Linux with a CVSS 2.0 base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2013-4345?
CVE-2013-4345 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2013-4345 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4345?
CVE-2013-4345 primarily affects Redhat Enterprise Linux. In total, 274 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4345?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4345 published?
CVE-2013-4345 was published on 2013-10-10 and last updated on 2026-06-16.

References

Affected products (274)

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