UbuntuUSN-6584-2Libspf2 vulnerabilities
9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3 High
AI Score
Confidence
Low
0.036 Low
EPSS
Percentile
91.8%
Releases
- Ubuntu 16.04 ESM
Packages
- libspf2 - Sender Policy Framework for SMTP authorization
Details
USN-6584-1 fixed several vulnerabilities in Ubuntu 18.04 LTS and
Ubuntu 20.04 LTS. This update provides the corresponding updates for
CVE-2021-33912 and CVE-2021-33913 in Ubuntu 16.04 LTS.
We apologize for the inconvenience.
Original advisory details:
Philipp Jeitner and Haya Shulman discovered that Libspf2 incorrectly handled
certain inputs. If a user or an automated system were tricked into opening a
specially crafted input file, a remote attacker could possibly use this issue
to cause a denial of service or execute arbitrary code. (CVE-2021-20314)
It was discovered that Libspf2 incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file, a
remote attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and
Ubuntu 20.04 LTS. (CVE-2021-33912, CVE-2021-33913)
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 16.04 | noarch | libmail-spf-xs-perl | < 1.2.10-6ubuntu0.1~esm2 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libmail-spf-xs-perl | < 1.2.10-6build1 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libmail-spf-xs-perl-dbgsym | < 1.2.10-6build1 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libspf2-2 | < 1.2.10-6build1 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libspf2-2-dbg | < 1.2.10-6build1 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libspf2-2-dbgsym | < 1.2.10-6build1 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libspf2-dev | < 1.2.10-6build1 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libspf2-dev-dbgsym | < 1.2.10-6build1 | UNKNOWN |
| Ubuntu | 16.04 | noarch | spfquery | < 1.2.10-6build1 | UNKNOWN |
| Ubuntu | 16.04 | noarch | spfquery-dbgsym | < 1.2.10-6build1 | UNKNOWN |
Related
9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3 High
AI Score
Confidence
Low
0.036 Low
EPSS
Percentile
91.8%