CVE-2019-18348
Published: 23 October 2019
An issue was discovered in urllib2 in Python 2.x through 2.7.17 and urllib in Python 3.x through 3.8.0. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the host component of a URL) followed by an HTTP header. This is similar to the CVE-2019-9740 query string issue and the CVE-2019-9947 path string issue. (This is not exploitable when glibc has CVE-2016-10739 fixed.). This is fixed in: v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1; v3.6.11, v3.6.11rc1, v3.6.12; v3.7.8, v3.7.8rc1, v3.7.9; v3.8.3, v3.8.3rc1, v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1.
Notes
| Author | Note |
|---|---|
| leosilva | This issue can be reproducible only in systems with the glibc issue mentioned in CVE-2016-10739 not fixed. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
python2.7 Launchpad, Ubuntu, Debian |
bionic |
Released
(2.7.17-1~18.04ubuntu1)
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Not vulnerable
(2.7.18~rc1-2)
|
|
| groovy |
Not vulnerable
(2.7.18~rc1-2)
|
|
| hirsute |
Not vulnerable
(2.7.18~rc1-2)
|
|
| impish |
Not vulnerable
(2.7.18~rc1-2)
|
|
| jammy |
Not vulnerable
(2.7.18~rc1-2)
|
|
| kinetic |
Not vulnerable
(2.7.18~rc1-2)
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Released
(2.7.6-8ubuntu0.6+esm5)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Needs triage
|
|
| xenial |
Released
(2.7.12-1ubuntu0~16.04.11)
|
|
|
Patches: upstream: https://github.com/python/cpython/commit/e176e0c105786e9f476758eb5438c57223b65e7f |
||
|
python3.4 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Released
(3.4.3-1ubuntu1~14.04.7+esm6)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
python3.5 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Needed
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(3.5.2-2ubuntu0~16.04.10)
|
|
|
python3.6 Launchpad, Ubuntu, Debian |
bionic |
Released
(3.6.9-1~18.04ubuntu1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: https://github.com/python/cpython/commit/83fc70159b24f5b11a5ef87c9b05c2cf4c7faeba |
||
|
python3.7 Launchpad, Ubuntu, Debian |
bionic |
Needed
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Released
(3.7.5-2~19.10ubuntu1)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: https://github.com/python/cpython/commit/34f85af3229f86c004a954c3f261ceea1f5e9f95 |
||
|
python3.8 Launchpad, Ubuntu, Debian |
bionic |
Needed
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Released
(3.8.2-1ubuntu1.1)
|
|
| groovy |
Released
(3.8.2-1ubuntu1.1)
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: https://github.com/python/cpython/commit/ff69c9d12c1b06af58e5eae5db4630cedd94740e |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.1 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Changed |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |