CVE-2021-36386
High
Description
report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any realistic platform results in an impact beyond an inconvenience to the client user.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Fetchmail
PublishedJul 30, 2021
First seenJul 30, 2021
How to fix
Update
- fetchmail fetchmail6.4.20 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fetchmail fetchmail | v < 6.4.20 | 6.4.20 |
| fedoraproject fedora | 33, 34 | — |
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