CVE-2013-1895
The py-bcrypt module before 0.3 for Python does not properly handle concurrent memory access, which allows attackers to bypass authentication via multiple authentication requests, which trigger the
02 Description
The py-bcrypt module before 0.3 for Python does not properly handle concurrent memory access, which allows attackers to bypass authentication via multiple authentication requests, which trigger the
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
- 2.83% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 86.4% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
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
- 2020-01-28 14:30Z6 YR AGO
- Last updated
- 2024-08-06 15:20Z2 YR AGO
- Reserved
- 2013-02-19
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-307Improper Restriction of Excessive Authentication AttemptsBase
- Data version
- 5.1
- Document digest
- b52c763571fdcefe20045dcd1b392182c6cba4720ea2ccf189efc6ee45a327d6
05 Affected products
06 References
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2013/03/26/2
- lists.fedoraproject.orghttp://lists.fedoraproject.org/pipermail/package-announce/2013-April/101387.html
- lists.fedoraproject.orghttp://lists.fedoraproject.org/pipermail/package-announce/2013-April/101382.html
- www.securityfocus.comhttp://www.securityfocus.com/bid/58702
- exchange.xforce.ibmcloud.comhttps://exchange.xforce.ibmcloud.com/vulnerabilities/83039
07 Fixed in
Debian 12
- python-bcrypt Fixed in 0.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- python-bcrypt Fixed in 0.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- python-bcrypt Fixed in 0.4-1
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.