CVE-2021-36386

Published on: 07/29/2021 12:00:00 AM UTC

Last Modified on: 09/20/2021 12:22:00 PM UTC

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Certain versions of Fedora from Fedoraproject contain the following vulnerability:

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.

  • CVE-2021-36386 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.

CVSS3 Score: 7.5 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE NONE HIGH

CVSS2 Score: 5 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE NONE PARTIAL

CVE References

Description Tags Link
Fetchmail www.fetchmail.info
text/html
URL Logo MISC www.fetchmail.info/security.html
No Description Provided lists.fedoraproject.org

Inactive LinkNot Archived
URL Logo FEDORA FEDORA-2021-47893f53ed
www.fetchmail.info
text/plain
URL Logo CONFIRM www.fetchmail.info/fetchmail-SA-2021-01.txt
oss-security - ANNOUNCE: fetchmail <= 6.4.19 security announcement 2021-01 (CVE-2021-36386) - fetchmail 6.4.20 released. DoS or information disclosure in some configurations www.openwall.com
text/html
URL Logo MISC www.openwall.com/lists/oss-security/2021/07/28/5
oss-security - fetchmail 6.4.21 released/regression fix for 6.4.20's security fix, and UPDATE: fetchmail <= 6.4.19 security announcement 2021-01 (CVE-2021-36386) www.openwall.com
text/html
URL Logo MLIST [oss-security] 20210809 fetchmail 6.4.21 released/regression fix for 6.4.20's security fix, and UPDATE: fetchmail <= 6.4.19 security announcement 2021-01 (CVE-2021-36386)
[SECURITY] Fedora 34 Update: fetchmail-6.4.20-1.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
text/html
URL Logo FEDORA FEDORA-2021-b904d99ce5

Related QID Numbers

  • 281789 Fedora Security Update for fetchmail (FEDORA-2021-47893f53ed)
  • 281790 Fedora Security Update for fetchmail (FEDORA-2021-b904d99ce5)
  • 375766 Fetchmail Denial of Service Vulnerability (fetchmail-SA-2021-01)
  • 670948 EulerOS Security Update for fetchmail (EulerOS-SA-2021-2658)
  • 670995 EulerOS Security Update for fetchmail (EulerOS-SA-2021-2629)
  • 690072 Free Berkeley Software Distribution (FreeBSD) Security Update for fetchmail (cbfd1874-efea-11eb-8fe9-036bd763ff35)
  • 750976 SUSE Enterprise Linux Security Update for fetchmail (SUSE-SU-2021:2771-1)
  • 750990 SUSE Enterprise Linux Security Update for fetchmail (SUSE-SU-2021:2791-1)
  • 750998 OpenSUSE Security Update for fetchmail (openSUSE-SU-2021:1183-1)
  • 751015 OpenSUSE Security Update for fetchmail (openSUSE-SU-2021:2791-1)
  • 91799 Cygwin fetchmail Package Denial Of Service Vulnerability

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System
FedoraprojectFedora33AllAllAll
Operating
System
FedoraprojectFedora34AllAllAll
ApplicationFetchmailFetchmailAllAllAllAll
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*:
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*:
  • cpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-36386 : report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprin… twitter.com/i/web/status/1… 2021-07-29 14:42:51
© CVE.report 2021 Twitter Nitter Twitter Viewer |

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