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ubuntuUbuntuUSN-5232-1
HistorySep 12, 2022 - 12:00 a.m.

Fail2ban vulnerability

2022-09-1200:00:00
ubuntu.com
96
fail2ban
ubuntu
vulnerability
whois
remote attacker
arbitrary code

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.018

Percentile

88.1%

JSON

Releases

  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • fail2ban - ban hosts that cause multiple authentication errors

Details

Jakub Żoczek discovered that certain Fail2ban actions handled whois responses in
an insecure way. If Fail2ban was configured to use certain mail actions
like ‘mail-whois’ on a target system, a remote attacker who was able to control whois
responses to this target system could possibly execute arbitrary code.

OSVersionArchitecturePackageVersionFilename
Ubuntu20.04noarchfail2ban< 0.11.1-1ubuntu0.1~esm1UNKNOWN
Ubuntu20.04noarchfail2ban< 0.11.1-1UNKNOWN
Ubuntu18.04noarchfail2ban< 0.10.2-2ubuntu0.1~esm1UNKNOWN
Ubuntu18.04noarchfail2ban< 0.10.2-2UNKNOWN
Ubuntu16.04noarchfail2ban< 0.9.3-1ubuntu0.1~esm1UNKNOWN
Ubuntu16.04noarchfail2ban< 0.9.3-1UNKNOWN
Ubuntu14.04noarchfail2ban< 0.8.11-1ubuntu0.1~esm1UNKNOWN
Ubuntu14.04noarchfail2ban< 0.8.11-1UNKNOWN

Related

fedora 2
openvas 5
osv 3
veracode 1
freebsd 1
cve 1
nvd 1
ubuntucve 1
prion 1
alpinelinux 1
debiancve 1
cvelist 1
suse 1
nessus 4
gentoo 1
mageia 1
fedora
fedora
[SECURITY] Fedora 34 Update: fail2ban-0.11.2-9.fc34
2021-10-19 00:37:20
[SECURITY] Fedora 35 Update: fail2ban-0.11.2-9.fc35
2021-10-29 23:23:55
openvas
openvas
openSUSE: Security Advisory for fail2ban (openSUSE-SU-2021:1274-1)
2021-09-17 00:00:00
Fedora: Security Advisory for fail2ban (FEDORA-2021-0ab8f6a19a)
2021-10-21 00:00:00
Fedora: Security Advisory for fail2ban (FEDORA-2021-a18b79d182)
2021-10-30 00:00:00
osv
osv
fail2ban vulnerability
2022-09-12 07:45:30
fail2ban-0.11.2-3.1 on GA media
2024-06-15 00:00:00
CVE-2021-32749
2021-07-16 18:15:08
veracode
veracode
Remote Code Execution
2021-07-19 00:16:39
freebsd
freebsd
fail2ban -- possible RCE vulnerability in mailing action using mailutils
2021-07-16 00:00:00
cve
cve
CVE-2021-32749
2021-07-16 18:15:08
nvd
nvd
CVE-2021-32749
2021-07-16 18:15:08
ubuntucve
ubuntucve
CVE-2021-32749
2021-07-16 00:00:00
prion
prion
Remote code execution
2021-07-16 18:15:00
alpinelinux
alpinelinux
CVE-2021-32749
2021-07-16 18:15:08
debiancve
debiancve
CVE-2021-32749
2021-07-16 18:15:08
cvelist
cvelist
CVE-2021-32749 Possible RCE vulnerability in mailing action using mailutils (mail-whois)
2021-07-16 00:00:00
suse
suse
Security update for fail2ban (important)
2021-09-16 00:00:00
nessus
nessus
Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM : Fail2ban vulnerability (USN-5232-1)
2023-10-16 00:00:00
FreeBSD : fail2ban -- possible RCE vulnerability in mailing action using mailutils (c848059a-318b-11ec-aa15-0800270512f4)
2021-10-28 00:00:00
GLSA-202310-13 : GNU Mailutils: unexpected processsing of escape sequences
2023-10-19 00:00:00
gentoo
gentoo
GNU Mailutils: unexpected processsing of escape sequences
2023-10-19 00:00:00
mageia
mageia
Updated fail2ban packages fix security vulnerability
2021-10-06 22:41:56

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.018

Percentile

88.1%

JSON
Related for USN-5232-1
fedora2openvas5osv3veracode1freebsd1cve1nvd1ubuntucve1prion1alpinelinux1debiancve1cvelist1suse1nessus4gentoo1mageia1