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ubuntucveUbuntu.comUB:CVE-2021-36386
HistoryJul 30, 2021 - 12:00 a.m.

CVE-2021-36386

2021-07-3000:00:00
ubuntu.com
ubuntu.com
12

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.005

Percentile

76.8%

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.

Notes

Author Note
mdeslaur second commit is a regression fix

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.005

Percentile

76.8%