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CVE-2011-1947

UnknownEPSS 2.55%

Last modified

CVE-2011-1947 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.55% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.55%

83.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
FetchmailFetchmail5.9.9—
FetchmailFetchmail5.9.10—
FetchmailFetchmail5.9.11—
FetchmailFetchmail5.9.13—
FetchmailFetchmail6.0.0—
FetchmailFetchmail6.1.0—
FetchmailFetchmail6.1.3—
FetchmailFetchmail6.2.0—
FetchmailFetchmail6.2.1—
FetchmailFetchmail6.2.2—
FetchmailFetchmail6.2.3—
FetchmailFetchmail6.2.4—
FetchmailFetchmail6.2.5—
FetchmailFetchmail6.2.5.1—
FetchmailFetchmail6.2.5.2—
FetchmailFetchmail6.2.5.4—
FetchmailFetchmail6.2.6Pre4
FetchmailFetchmail6.2.9Rc10
FetchmailFetchmail6.3.0—
FetchmailFetchmail6.3.1—
FetchmailFetchmail6.3.2—
FetchmailFetchmail6.3.3—
FetchmailFetchmail6.3.4—
FetchmailFetchmail6.3.5—
FetchmailFetchmail6.3.6—
FetchmailFetchmail6.3.7—
FetchmailFetchmail6.3.8—
FetchmailFetchmail6.3.9—
FetchmailFetchmail6.3.10—
FetchmailFetchmail6.3.11—
FetchmailFetchmail6.3.12—
FetchmailFetchmail6.3.13—
FetchmailFetchmail6.3.14—
FetchmailFetchmail6.3.15—
FetchmailFetchmail6.3.16—
FetchmailFetchmail6.3.17—
FetchmailFetchmail6.3.18—
FetchmailFetchmail6.3.19—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 servers to cause a denial of service (application hang) by acknowledging the request but not sending additional packets.
How severe is CVE-2011-1947?
Severity scoring for CVE-2011-1947 is pending analysis. The EPSS model estimates a 2.55% probability of exploitation in the next 30 days.
How do I fix CVE-2011-1947?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-1947?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST