CVEvulnerability
CVE-2021-36386
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-07-30
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-909
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.
Affected configurations
• fetchmail fetchmail (< 6.4.20)
• fedoraproject fedora 33
• fedoraproject fedora 34
Related
Weakness · CWE (1)
- CWE-909 Missing Initialization of Resource weakness
References
- http://www.openwall.com/lists/oss-security/2021/07/28/5 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/09/1 Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AGYO5AHSXTCKA4NQC2Z4H3XMMYNAGC77/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIXKO6QW3AUHGJVWKJXBCOVBYJUJRBFC/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202209-14 Third Party Advisory
- https://www.fetchmail.info/fetchmail-SA-2021-01.txt Vendor Advisory
- https://www.fetchmail.info/security.html Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/07/28/5 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/09/1 Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AGYO5AHSXTCKA4NQC2Z4H3XMMYNAGC77/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIXKO6QW3AUHGJVWKJXBCOVBYJUJRBFC/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202209-14 Third Party Advisory
- https://www.fetchmail.info/fetchmail-SA-2021-01.txt Vendor Advisory
- https://www.fetchmail.info/security.html Vendor Advisory