CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
AI Score
Confidence
High
EPSS
Percentile
70.8%
Debian Security Advisory DSA-4955-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
August 11, 2021 https://www.debian.org/security/faq
Package : libspf2
CVE ID : CVE-2021-20314
Philipp Jeitner and Haya Shulman discovered a stack-based buffer
overflow in libspf2, a library for validating mail senders with SPF,
which could result in denial of service, or potentially execution of
arbitrary code when processing a specially crafted SPF record.
For the stable distribution (buster), this problem has been fixed in
version 1.2.10-7.1~deb10u1.
We recommend that you upgrade your libspf2 packages.
For the detailed security status of libspf2 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/libspf2
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 11 | all | libspf2 | < 1.2.10-7.1~deb11u1 | libspf2_1.2.10-7.1~deb11u1_all.deb |
Debian | 11 | arm64 | spfquery | < 1.2.10-7.1~deb11u1 | spfquery_1.2.10-7.1~deb11u1_arm64.deb |
Debian | 10 | armel | libmail-spf-xs-perl | < 1.2.10-7.1~deb10u1 | libmail-spf-xs-perl_1.2.10-7.1~deb10u1_armel.deb |
Debian | 10 | arm64 | spfquery | < 1.2.10-7.1~deb10u1 | spfquery_1.2.10-7.1~deb10u1_arm64.deb |
Debian | 10 | s390x | libspf2-2 | < 1.2.10-7.1~deb10u1 | libspf2-2_1.2.10-7.1~deb10u1_s390x.deb |
Debian | 10 | mips | libmail-spf-xs-perl | < 1.2.10-7.1~deb10u1 | libmail-spf-xs-perl_1.2.10-7.1~deb10u1_mips.deb |
Debian | 11 | armhf | libspf2-2-dbg | < 1.2.10-7.1~deb11u1 | libspf2-2-dbg_1.2.10-7.1~deb11u1_armhf.deb |
Debian | 11 | mipsel | libspf2-2-dbg | < 1.2.10-7.1~deb11u1 | libspf2-2-dbg_1.2.10-7.1~deb11u1_mipsel.deb |
Debian | 9 | armel | libspf2-dev | < 1.2.10-7+deb9u1 | libspf2-dev_1.2.10-7+deb9u1_armel.deb |
Debian | 11 | arm64 | libspf2-2-dbg | < 1.2.10-7.1~deb11u1 | libspf2-2-dbg_1.2.10-7.1~deb11u1_arm64.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
AI Score
Confidence
High
EPSS
Percentile
70.8%