CVE-2015-3206
The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service (bad response), or have other
02 Description
The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service (bad response), or have other
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
- 2.39% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 83.7% of scored records. A rank, not a probability.
- NVD base score
- 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- 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
- 2017-08-25 18:00Z9 YR AGO
- Last updated
- 2024-08-06 05:39Z2 YR AGO
- Reserved
- 2015-04-10
- 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
- ff266c748321331898c964b51c6a9c9da1553f98b7e38e9adeeafca99a2d086b
05 Affected products
06 References
- www.openwall.com[oss-security] 20150521 CVE-2015-3206 python-kerberos: checkPassword() does not verify KDC authenticityhttp://www.openwall.com/lists/oss-security/2015/05/21/3
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1223802
- pypi.python.orghttps://pypi.python.org/pypi/kerberos
- www.securityfocus.com74760http://www.securityfocus.com/bid/74760
- github.comhttps://github.com/apple/ccs-pykerberos/issues/31
07 Fixed in
Debian 12
- pykerberos Fixed in 1.1.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- pykerberos Fixed in 1.1.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- pykerberos Fixed in 1.1.5-1
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.