CVE-2021-36386
published 2021-07-30CVE-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…
PriorityP434high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
2.56%
83.5th percentile
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.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | fetchmail | < fetchmail 6.4.16-4 (bookworm) | fetchmail 6.4.16-4 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fetchmail | fetchmail | < 6.4.20 | 6.4.20 |
| fetchmail | fetchmail | >= 0 < 6.4.16-4 | 6.4.16-4 |
| fetchmail | fetchmail | >= 0 < 6.4.16-4 | 6.4.16-4 |
| fetchmail | fetchmail | >= 0 < 6.4.16-4 | 6.4.16-4 |
| msrc | cbl2_fetchmail_6.4.22-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5LOW
vendor_msrc7.5HIGH
vendor_redhat4.3MEDIUM
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GHSA
GHSA-rr6c-95pp-cpgf: report_vbuild in report
ghsa_unreviewed·2022-05-24
CVE-2021-36386 [HIGH] CWE-400 GHSA-rr6c-95pp-cpgf: report_vbuild in report
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.
OSV
CVE-2021-36386: report_vbuild in report
osv·2021-07-30·CVSS 7.5
CVE-2021-36386 [HIGH] CVE-2021-36386: report_vbuild in report
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.
Red Hat
fetchmail: DoS or information disclosure when logging long messages
vendor_redhat·2021-07-28·CVSS 4.3
CVE-2021-36386 [MEDIUM] CWE-665 fetchmail: DoS or information disclosure when logging long messages
fetchmail: DoS or information disclosure when logging long messages
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.
A flaw was found in fetchmail. The flaw lies in how fetchmail when running in verbose mode using the -v flag tries to log long messages that are created from long headers. An attacker could potentially use this flaw to cause a Denial of Service attack or crash. The highest threat from this vulnerability is to data availability. This flaw was earl
Microsoft
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 unspe
vendor_msrc·2021-07-13·CVSS 7.5
CVE-2021-36386 [HIGH] CWE-909 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 unspe
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency
Debian
CVE-2021-36386: fetchmail - report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initializat...
vendor_debian·2021·CVSS 7.5
CVE-2021-36386 [HIGH] CVE-2021-36386: fetchmail - report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initializat...
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.
Scope: local
bookworm: resolved (fixed in 6.4.16-4)
bullseye: resolved (fixed in 6.4.16-4)
sid: resolved (fixed in 6.4.16-4)
trixie: resolved (fixed in 6.4.16-4)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://www.openwall.com/lists/oss-security/2021/07/28/5http://www.openwall.com/lists/oss-security/2021/08/09/1https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AGYO5AHSXTCKA4NQC2Z4H3XMMYNAGC77/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIXKO6QW3AUHGJVWKJXBCOVBYJUJRBFC/https://security.gentoo.org/glsa/202209-14https://www.fetchmail.info/fetchmail-SA-2021-01.txthttps://www.fetchmail.info/security.htmlhttp://www.openwall.com/lists/oss-security/2021/07/28/5http://www.openwall.com/lists/oss-security/2021/08/09/1https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AGYO5AHSXTCKA4NQC2Z4H3XMMYNAGC77/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIXKO6QW3AUHGJVWKJXBCOVBYJUJRBFC/https://security.gentoo.org/glsa/202209-14https://www.fetchmail.info/fetchmail-SA-2021-01.txthttps://www.fetchmail.info/security.html
2021-07-30
Published