CVE-2021-3516
Published: 1 June 2021
There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libxml2 Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(2.9.10+dfsg-6.7)
|
| trusty |
Released
(2.9.1+dfsg1-3ubuntu4.13+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| bionic |
Released
(2.9.4+dfsg1-6.1ubuntu1.4)
|
|
| focal |
Released
(2.9.10+dfsg-5ubuntu0.20.04.1)
|
|
| groovy |
Released
(2.9.10+dfsg-5ubuntu0.20.10.2)
|
|
| xenial |
Released
(2.9.3+dfsg1-1ubuntu0.7+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| hirsute |
Released
(2.9.10+dfsg-6.3ubuntu0.1)
|
|
| jammy |
Not vulnerable
(2.9.10+dfsg-6.7)
|
|
| upstream |
Released
(2.9.10+dfsg-6.6, 2.9.11)
|
|
|
Patches: upstream: https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |