CVE-2021-34550
Published: 29 June 2021
An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-006. The v3 onion service descriptor parsing allows out-of-bounds memory access, and a client crash, via a crafted onion service descriptor
Priority
Status
Package | Release | Status |
---|---|---|
tor Launchpad, Ubuntu, Debian |
bionic |
Released
(0.3.2.10-1ubuntu0.2~esm2)
Available with Ubuntu Pro |
focal |
Released
(0.4.2.7-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Ignored
(end of life)
|
|
impish |
Ignored
(end of life)
|
|
jammy |
Not vulnerable
(0.4.6.10-1)
|
|
kinetic |
Not vulnerable
(0.4.7.10-1)
|
|
lunar |
Not vulnerable
(0.4.7.10-1)
|
|
mantic |
Not vulnerable
(0.4.7.10-1)
|
|
trusty |
Not vulnerable
(code not present)
|
|
upstream |
Released
(0.4.6.5)
|
|
xenial |
Not vulnerable
(code not present)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |