CVE-2021-28089

Name
CVE-2021-28089
Description
Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, aka TROVE-2021-001.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Vendor Advisory https://gitlab.torproject.org/tpo/core/tor/-/issues/40304
Release Notes https://blog.torproject.org/node/2009
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HPDXB2GZHG3VNOTWSXQ3QZVHNV76WCU5/
GENTOO https://security.gentoo.org/glsa/202107-25

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* tor >= None < 0.3.5.14
cpe:2.3:a:torproject:tor:0.4.4.0:alpha:*:*:*:*:*:* tor == None == 0.4.4.0
cpe:2.3:a:torproject:tor:0.4.4.1:alpha:*:*:*:*:*:* tor == None == 0.4.4.1
cpe:2.3:a:torproject:tor:0.4.4.2:alpha:*:*:*:*:*:* tor == None == 0.4.4.2
cpe:2.3:a:torproject:tor:0.4.4.3:alpha:*:*:*:*:*:* tor == None == 0.4.4.3
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* tor >= 0.4.4.4 < 0.4.4.8
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* tor >= 0.4.5.0 < 0.4.5.7

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
tor edge-community 0.4.5.7-r0 omni <omni+alpine@hack.org> fixed
tor edge-community 0.3.5.8-r0 None possibly vulnerable
tor edge-community 0.3.2.10-r0 None possibly vulnerable
tor edge-community 0.3.0.8-r0 None possibly vulnerable
tor 3.22-community 0.4.5.7-r0 None fixed
tor 3.22-community 0.3.5.8-r0 None possibly vulnerable
tor 3.22-community 0.3.2.10-r0 None possibly vulnerable
tor 3.22-community 0.3.0.8-r0 None possibly vulnerable
tor 3.21-community 0.4.5.7-r0 None fixed
tor 3.20-community 0.4.5.7-r0 None fixed
tor 3.19-community 0.4.5.7-r0 None fixed
tor 3.18-community 0.4.5.7-r0 None fixed
tor 3.17-community 0.4.5.7-r0 None fixed