CVE-2015-3644
Stunnel 5.00 through 5.13, when using the redirect option, does not redirect client connections to the expected server after the initial connection, which allows remote attackers to bypass
02 Description
Stunnel 5.00 through 5.13, when using the redirect option, does not redirect client connections to the expected server after the initial connection, which allows remote attackers to bypass
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
- 2.12% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 81.4% 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 2026-06-17.
- Red Hat severity
- Important. 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
- 2015-05-14 00:00Z11 YR AGO
- Last updated
- 2024-08-06 05:47Z2 YR AGO
- Reserved
- 2015-05-04
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-284Improper Access ControlPillar
- Data version
- 5.1
- Document digest
- d557a41646bad3a954aca43277353b180c1c5e9ee3b49c803f7730c6a077cb5c
05 Affected products
06 References
- www.debian.orgDSA-3299http://www.debian.org/security/2015/dsa-3299
- www.securityfocus.com74659http://www.securityfocus.com/bid/74659
- www.stunnel.orghttps://www.stunnel.org/CVE-2015-3644.html
- www.securitytracker.com1032324http://www.securitytracker.com/id/1032324
07 Fixed in
Debian 12
- stunnel4 Fixed in 3:5.18-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- stunnel4 Fixed in 3:5.18-1
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.