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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.20% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 87.8% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2013-10-10 10:00Z13 YR AGO
- Last updated
- 2024-08-06 16:38Z2 YR AGO
- Reserved
- 2013-06-12
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- bc49770086345aaebb21927971b90b16e3a2d364fa88641cb1e3fbadcf8b6121
05 Affected products
06 References
- www.ubuntu.comUSN-2065-1http://www.ubuntu.com/usn/USN-2065-1
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1007690
- www.ubuntu.comUSN-2110-1http://www.ubuntu.com/usn/USN-2110-1
- rhn.redhat.comRHSA-2013:1490http://rhn.redhat.com/errata/RHSA-2013-1490.html
- rhn.redhat.comRHSA-2013:1645http://rhn.redhat.com/errata/RHSA-2013-1645.html
- www.ubuntu.comUSN-2076-1http://www.ubuntu.com/usn/USN-2076-1
- www.ubuntu.comUSN-2158-1http://www.ubuntu.com/usn/USN-2158-1
- www.ubuntu.comUSN-2070-1http://www.ubuntu.com/usn/USN-2070-1
- www.ubuntu.comUSN-2071-1http://www.ubuntu.com/usn/USN-2071-1
- www.ubuntu.comUSN-2109-1http://www.ubuntu.com/usn/USN-2109-1
- rhn.redhat.comRHSA-2013:1449http://rhn.redhat.com/errata/RHSA-2013-1449.html
- www.securityfocus.com62740http://www.securityfocus.com/bid/62740
- www.ubuntu.comUSN-2074-1http://www.ubuntu.com/usn/USN-2074-1
- www.ubuntu.comUSN-2068-1http://www.ubuntu.com/usn/USN-2068-1
- marc.info[linux-crypto] 20130917 [PATCH] ansi_cprng: Fix off by one error in non-block size requesthttp://marc.info/?l=linux-crypto-vger&m=137942122902845&w=2
- www.ubuntu.comUSN-2072-1http://www.ubuntu.com/usn/USN-2072-1
- www.ubuntu.comUSN-2075-1http://www.ubuntu.com/usn/USN-2075-1
- www.ubuntu.comUSN-2064-1http://www.ubuntu.com/usn/USN-2064-1
07 Fixed in
Debian 12
- linux Fixed in 3.11.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 3.11.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 3.11.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.