CVE-2020-24977
Published: 4 September 2020
GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.
Notes
| Author | Note |
|---|---|
| mdeslaur | only affects xmllint contrary to description, not fixed in 8e7c20a1 |
| ccdm94 | According to upstream, 50f06b3e is only a partial fix. Commit bf22713507 must be included in order to achieve a complete fix. Commit bf22713507, however, seems to have introduced an issue (see 237), fixed by 1098c30a04, which in turn seems to be the fix for CVE-2021-3518. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libxml2 Launchpad, Ubuntu, Debian |
upstream |
Released
(2.9.10+dfsg-6.2, 2.9.11)
|
| hirsute |
Not vulnerable
(2.9.10+dfsg-6.3build2)
|
|
| xenial |
Released
(2.9.3+dfsg1-1ubuntu0.7+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| bionic |
Released
(2.9.4+dfsg1-6.1ubuntu1.4)
|
|
| jammy |
Not vulnerable
(2.9.10+dfsg-6.3build2)
|
|
| focal |
Released
(2.9.10+dfsg-5ubuntu0.20.04.1)
|
|
| groovy |
Released
(2.9.10+dfsg-5ubuntu0.20.10.2)
|
|
| impish |
Not vulnerable
(2.9.10+dfsg-6.3build2)
|
|
| trusty |
Released
(2.9.1+dfsg1-3ubuntu4.13+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
|
Patches: upstream: https://gitlab.gnome.org/GNOME/libxml2/-/commit/50f06b3efb638efb0abd95dc62dca05ae67882c2 upstream: https://gitlab.gnome.org/GNOME/libxml2/-/commit/bf22713507fe1fc3a2c4b525cf0a88c2dc87a3a2 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | None |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L |