CVE-2013-4345
Linux Kernel CPRNG Off-by-One Error Cryptographic Vulnerability
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.
INFO
Published Date :
Oct. 10, 2013, 10:55 a.m.
Last Modified :
Feb. 13, 2023, 12:28 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.9
Exploitability Score :
8.6
Affected Products
The following products are affected by CVE-2013-4345
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2013-4345.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2013-4345 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2013-4345 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 13, 2023
Action Type Old Value New Value Changed Description CVE-2013-4345 kernel: ansi_cprng: off by one error in non-block size request 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. Removed CVSS V2 Red Hat, Inc. (AV:L/AC:H/Au:N/C:P/I:P/A:N) Removed Reference https://access.redhat.com/errata/RHSA-2013:1449 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2013:1490 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2013:1645 [No Types Assigned] Removed Reference https://access.redhat.com/security/cve/CVE-2013-4345 [No Types Assigned] -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Changed 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. CVE-2013-4345 kernel: ansi_cprng: off by one error in non-block size request Added CVSS V2 Red Hat, Inc. (AV:L/AC:H/Au:N/C:P/I:P/A:N) Added Reference https://access.redhat.com/errata/RHSA-2013:1490 [No Types Assigned] Added Reference https://access.redhat.com/security/cve/CVE-2013-4345 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2013:1645 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2013:1449 [No Types Assigned] -
CPE Deprecation Remap by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:redhat:enterprise_mrg:2.1:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_mrg:2.1:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:redhat:enterprise_mrg:2.2:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_mrg:2.2:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:redhat:enterprise_mrg:2.3:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_mrg:2.3:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:redhat:enterprise_mrg:2.4:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_mrg:2.4:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Apr. 22, 2019
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 21, 2015
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/62740 -
Initial Analysis by [email protected]
Oct. 09, 2013
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2013-4345 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2013-4345
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.59 }} 0.02%
score
0.75065
percentile