Back
CVE-2011-1947
fetchmail 5.9.9 through 6.3.19 does not properly limit the wait time after issuing a (1) STARTTLS or (2) STLS request, which allows remote…
Medium5.0EPSS 2.6%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
fetchmail 5.9.9 through 6.3.19 does not properly limit the wait time after issuing a (1) STARTTLS or (2) STLS request, which allows remote servers to cause a denial of service (application hang) by acknowledging the request but not sending additional packets.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 2.6% · top 15% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (14)
- [oss-security] 20110531 Re: CVE request for fetchmail STARTTLS hang (Denial of Service) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 48043 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2011-8011 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [oss-security] 20110531 Re: CVE request for fetchmail STARTTLS hang (Denial of Service) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20110530 CVE request for fetchmail STARTTLS hang (Denial of Service) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 20110606 fetchmail security announcement fetchmail-SA-2011-01 (CVE-2011-1947) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- FEDORA-2011-8059 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://gitorious.org/fetchmail/fetchmail/blobs/legacy_63/fetchmail-SA-2011-01.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1025605 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- MDVSA-2011:107 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- FEDORA-2011-8021 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www.fetchmail.info/fetchmail-SA-2011-01.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20110601 Re: CVE request for fetchmail STARTTLS hang (Denial of Service) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- fetchmail-starttls-dos(67700) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .