CVE-2021-20314

EUVD-2021-7739
Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 37%
Affected Products (NVD)
VendorProductVersion
libspf2libspf2
𝑥
< 1.2.11
redhatenterprise_linux
7.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libspf2
bookworm
1.2.10-7.2
fixed
bullseye
1.2.10-7.1~deb11u1
fixed
bullseye (security)
1.2.10-7.1~deb11u1
fixed
sid
1.2.10-8.2
fixed
trixie
1.2.10-8.2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libspf2
bionic
Fixed 1.2.10-7ubuntu0.18.04.1~esm1
released
focal
Fixed 1.2.10-7+deb9u2build0.20.04.1
released
hirsute
ignored
impish
ignored
jammy
not-affected
kinetic
ignored
lunar
not-affected
mantic
not-affected
trusty
dne
xenial
Fixed 1.2.10-6ubuntu0.1~esm1
released
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=1993070
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMSFT2NJDZ7PATRZSQPAOGSE7JD6ELOB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJRHPE5OSCPTNA3ZZ4ORDHT4JQH3Y4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y6T4HYXXSUQCGJB2ES6X7Q74YYF7V7XU/
https://security.gentoo.org/glsa/202401-22
https://bugzilla.redhat.com/show_bug.cgi?id=1993070
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMSFT2NJDZ7PATRZSQPAOGSE7JD6ELOB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJRHPE5OSCPTNA3ZZ4ORDHT4JQH3Y4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y6T4HYXXSUQCGJB2ES6X7Q74YYF7V7XU/
https://security.gentoo.org/glsa/202401-22