GoogleOSV:CVE-2021-36386CVE-2021-36386
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.
References
www.openwall.com/lists/oss-security/2021/07/28/5
www.openwall.com/lists/oss-security/2021/08/09/1
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AGYO5AHSXTCKA4NQC2Z4H3XMMYNAGC77/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIXKO6QW3AUHGJVWKJXBCOVBYJUJRBFC/
security.gentoo.org/glsa/202209-14
www.fetchmail.info/fetchmail-SA-2021-01.txt
www.fetchmail.info/security.html
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