CVE-2011-2940
stunnel 4.40 and 4.41 might allow remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.
02 Description
stunnel 4.40 and 4.41 might allow remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.
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
- 5.71% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 92.8% 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
- 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
- 2011-08-25 14:00Z15 YR AGO
- Last updated
- 2024-08-06 23:15Z2 YR AGO
- Reserved
- 2011-07-27
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
- Data version
- 5.1
- Document digest
- f33693a25f7486360e3943e82ed58bb4bb5600a01abf155b444f3350ae549676
05 Affected products
06 References
- www.openwall.com[oss-security] 20110819 CVE request: stunnel 4.4x heap overflow flawhttp://www.openwall.com/lists/oss-security/2011/08/19/6
- securitytracker.com1025959http://securitytracker.com/id?1025959
- www.openwall.com[oss-security] 20110819 Re: CVE request: stunnel 4.4x heap overflow flawhttp://www.openwall.com/lists/oss-security/2011/08/19/18
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=732068
- stunnel.orghttp://stunnel.org/?page=sdf_ChangeLog
- www.securityfocus.com49254http://www.securityfocus.com/bid/49254
- www.stunnel.org[stunnel-announce] 20110818 stunnel 4.42 releasedhttp://www.stunnel.org/pipermail/stunnel-announce/2011-August/000059.html
- www.osvdb.org74600http://www.osvdb.org/74600
- secunia.com45705http://secunia.com/advisories/45705
- exchange.xforce.ibmcloud.comstunnel-unspecifed-code-execution(69318)https://exchange.xforce.ibmcloud.com/vulnerabilities/69318
07 Fixed in
Debian 12
- stunnel4 Fixed in 3:4.42-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- stunnel4 Fixed in 3:4.42-1
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.