CVE-2021-28965

EUVD-2021-0797
The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x before 2.7.3, and 3.x before 3.0.1 does not properly address XML round-trip issues. An incorrect document can be produced after parsing and serializing.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 57%
Affected Products (NVD)
VendorProductVersion
ruby-langrexml
𝑥
< 3.2.5
ruby-langruby
𝑥
< 2.6.7
ruby-langruby
2.7.0 ≤
𝑥
< 2.7.3
ruby-langruby
3.0.0 ≤
𝑥
< 3.0.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
ruby2.7
bullseye
2.7.4-1+deb11u1
fixed
bullseye (security)
2.7.4-1+deb11u2
fixed
stretch
postponed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
ruby-rexml
bionic
dne
focal
dne
groovy
ignored
hirsute
ignored
impish
ignored
jammy
dne
trusty
dne
xenial
dne
ruby2.3
bionic
dne
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
Fixed 2.3.1-2~ubuntu16.04.16
released
ruby2.5
bionic
Fixed 2.5.1-1ubuntu1.9
released
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
dne
ruby2.7
bionic
dne
focal
Fixed 2.7.0-5ubuntu1.4
released
groovy
Fixed 2.7.1-3ubuntu1.3
released
hirsute
Fixed 2.7.2-4ubuntu1.1
released
impish
Fixed 2.7.3-2ubuntu1
released
trusty
dne
xenial
dne
References
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WTVFTLFVCSUE5CXHINJEUCKSHU4SWDMT/
https://security.netapp.com/advisory/ntap-20210528-0003/
https://www.ruby-lang.org/en/news/2021/04/05/xml-round-trip-vulnerability-in-rexml-cve-2021-28965/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WTVFTLFVCSUE5CXHINJEUCKSHU4SWDMT/
https://security.netapp.com/advisory/ntap-20210528-0003/
https://www.ruby-lang.org/en/news/2021/04/05/xml-round-trip-vulnerability-in-rexml-cve-2021-28965/