CVE catalog
CVE-2021-36386
fetchmail: CVE-2021-36386
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.56% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | fetchmail | sid | 6.6.9-1 | fixed |
| Debian | fetchmail | forky | 6.6.9-1 | fixed |
| Debian | fetchmail | trixie | 6.4.39-1 | fixed |
| Debian | fetchmail | bookworm | 6.4.37-1 | fixed |
| Suse | fetchmail | linux enterprise module for basesystem 15 sp2 | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise module for basesystem 15 sp3 | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise module for desktop applications 15 sp2 | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise module for desktop applications 15 sp3 | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise high performance computing 15-espos | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise high performance computing 15-ltss | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise high performance computing 15 sp1-espos | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise high performance computing 15 sp1-ltss | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise server 15-ltss | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise server 15 sp1-bcl | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise server 15 sp1-ltss | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise server for sap applications 15 | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | linux enterprise server for sap applications 15 sp1 | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | manager proxy 4.0 | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | manager retail branch server 4.0 | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | manager server 4.0 | 6.3.26-20.14.1 | fixed |
| Suse | fetchmail | enterprise storage 6 | 6.3.26-20.14.1 | fixed |
| Opensuse | fetchmail | leap 15.2 | 6.4.22-lp152.6.12.1 | fixed |
| Opensuse | fetchmail | leap 15.3 | 6.3.26-20.14.1 | fixed |
| Opensuse | fetchmail | leap 15.2 | 6.3.26-lp152.6.6.1 | fixed |
| Suse | fetchmail | linux enterprise module for basesystem 15 sp2 | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise module for basesystem 15 sp3 | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise module for desktop applications 15 sp2 | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise module for desktop applications 15 sp3 | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise high performance computing 15-espos | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise high performance computing 15-ltss | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise high performance computing 15 sp1-espos | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise high performance computing 15 sp1-ltss | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise server 15-ltss | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise server 15 sp1-bcl | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise server 15 sp1-ltss | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise server for sap applications 15 | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise server for sap applications 15 sp1 | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | enterprise storage 6 | 6.4.22-20.20.1 | fixed |
| Suse | fetchmail | linux enterprise server 12 sp5 | 6.3.26-13.18.1 | fixed |
| Suse | fetchmail | linux enterprise server for sap applications 12 sp5 | 6.3.26-13.18.1 | fixed |
| Suse | fetchmail | openstack cloud 8 | 6.3.26-13.12.1 | fixed |
| Suse | fetchmail | openstack cloud 9 | 6.3.26-13.12.1 | fixed |
| Suse | fetchmail | openstack cloud crowbar 9 | 6.3.26-13.12.1 | fixed |
| Suse | fetchmail | linux enterprise server for sap applications 12 sp3 | 6.3.26-13.12.1 | fixed |
| Suse | fetchmail | linux enterprise server for sap applications 12 sp4 | 6.3.26-13.12.1 | fixed |
| Suse | fetchmail | linux enterprise server 12 sp2-bcl | 6.3.26-13.12.1 | fixed |
| Suse | fetchmail | linux enterprise server 12 sp3-ltss | 6.3.26-13.12.1 | fixed |
| Suse | fetchmail | linux enterprise server 12 sp3-bcl | 6.3.26-13.12.1 | fixed |
| Suse | fetchmail | linux enterprise server 12 sp4-ltss | 6.3.26-13.12.1 | fixed |
| Suse | fetchmail | linux enterprise server 12 sp5 | 6.3.26-13.12.1 | fixed |
| Suse | fetchmail | linux enterprise server for sap applications 12 sp5 | 6.3.26-13.12.1 | fixed |
| Opensuse | fetchmail | leap 15.3 | 6.4.22-20.20.1 | fixed |
| Ubuntu | fetchmail | 16.04 | 6.3.26-1 | vulnerable |
| Ubuntu | fetchmail | 16.04 | 6.3.26-2 | vulnerable |
| Ubuntu | fetchmail | 18.04 | 6.3.26-3 | vulnerable |
| Ubuntu | fetchmail | 18.04 | 6.3.26-3build1 | vulnerable |
| Ubuntu | fetchmail | 18.04 | 6.3.26-3ubuntu0.1~18.04.1 | vulnerable |
| Ubuntu | fetchmail | 20.04 | 6.4.0~rc4-1ubuntu1 | vulnerable |
| Ubuntu | fetchmail | 20.04 | 6.4.1-1ubuntu1 | vulnerable |
| Ubuntu | fetchmail | 20.04 | 6.4.2-2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | fetchmail | source | sid | 6.4.16-4 | unimportant | Not reported | Not reported |
| Debian | fetchmail | source | forky | 6.4.16-4 | unimportant | Not reported | Not reported |
| Debian | fetchmail | source | trixie | 6.4.16-4 | unimportant | Not reported | Not reported |
| Debian | fetchmail | source | bookworm | 6.4.16-4 | unimportant | Not reported | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for basesystem 15 sp2 | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for basesystem 15 sp3 | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for desktop applications 15 sp2 | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for desktop applications 15 sp3 | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise high performance computing 15-espos | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise high performance computing 15-ltss | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise high performance computing 15 sp1-espos | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise high performance computing 15 sp1-ltss | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 15-ltss | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 15 sp1-bcl | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 15 sp1-ltss | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server for sap applications 15 | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server for sap applications 15 sp1 | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | manager proxy 4.0 | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | manager retail branch server 4.0 | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | manager server 4.0 | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Suse | fetchmail | rpm | enterprise storage 6 | 6.3.26-20.14.1 | Not reported | SUSE-SU-2021:2791-1 | Not reported |
| Opensuse | fetchmail | rpm | leap 15.2 | 6.4.22-lp152.6.12.1 | Not reported | OPENSUSE-SU-2021:1591-1 | Not reported |
| Opensuse | fetchmail | rpm | leap 15.3 | 6.3.26-20.14.1 | Not reported | OPENSUSE-SU-2021:2791-1 | Not reported |
| Opensuse | fetchmail | rpm | leap 15.2 | 6.3.26-lp152.6.6.1 | Not reported | OPENSUSE-SU-2021:1183-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for basesystem 15 sp2 | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for basesystem 15 sp3 | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for desktop applications 15 sp2 | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for desktop applications 15 sp3 | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise high performance computing 15-espos | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise high performance computing 15-ltss | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise high performance computing 15 sp1-espos | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise high performance computing 15 sp1-ltss | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 15-ltss | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 15 sp1-bcl | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 15 sp1-ltss | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server for sap applications 15 | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server for sap applications 15 sp1 | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | enterprise storage 6 | 6.4.22-20.20.1 | Not reported | SUSE-SU-2021:4018-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 12 sp5 | 6.3.26-13.18.1 | Not reported | SUSE-SU-2024:3006-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server for sap applications 12 sp5 | 6.3.26-13.18.1 | Not reported | SUSE-SU-2024:3006-1 | Not reported |
| Suse | fetchmail | rpm | openstack cloud 8 | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Suse | fetchmail | rpm | openstack cloud 9 | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Suse | fetchmail | rpm | openstack cloud crowbar 9 | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server for sap applications 12 sp3 | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server for sap applications 12 sp4 | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 12 sp2-bcl | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 12 sp3-ltss | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 12 sp3-bcl | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 12 sp4-ltss | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 12 sp5 | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server for sap applications 12 sp5 | 6.3.26-13.12.1 | Not reported | SUSE-SU-2021:2771-1 | Not reported |
| Opensuse | fetchmail | rpm | leap 15.3 | 6.4.22-20.20.1 | Not reported | OPENSUSE-SU-2021:4018-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [fetchmail]Fixed
Details (2)
6.4.37-1· amd64 · bookwormFixed · Fixed:
6.4.16-4dsa · fetchmail · debian · bookworm; dsa · fetchmail · debian · 12
6.4.37-1· arm64 · bookwormFixed · Fixed:
6.4.16-4dsa · fetchmail · debian · bookworm; dsa · fetchmail · debian · 12
[Debian 13 (Trixie)]
Observed:
References
- [https://access.redhat.com/errata/RHSA-2022:1964]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2022_1964.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-36386]
- [https://osv.dev/vulnerability/SUSE-SU-2021:2771-1]
- [https://osv.dev/vulnerability/SUSE-SU-2021:2791-1]
- [https://osv.dev/vulnerability/SUSE-SU-2021:4018-1]
- [https://osv.dev/vulnerability/SUSE-SU-2024:3006-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2021-36386]
- [https://osv.dev/vulnerability/openSUSE-SU-2021:1183-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2021:1591-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2021:2791-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2021:4018-1]
- [https://security-tracker.debian.org/tracker/CVE-2021-36386]
- [https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2022-1525.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]