| Name | CVE-2018-25091 |
| Description | urllib3 before 1.24.2 does not remove the authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the authorization header to be exposed to unintended hosts or transmitted in cleartext. NOTE: this issue exists because of an incomplete fix for CVE-2018-20060 (which was case-sensitive). |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3610-1, ELA-1014-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| python-urllib3 (PTS) | jessie, jessie (lts) | 1.9.1-3+deb8u2 | fixed |
| stretch (security) | 1.19.1-1+deb9u1 | vulnerable | |
| stretch (lts), stretch | 1.19.1-1+deb9u2 | fixed | |
| buster | 1.24.1-1 | vulnerable | |
| buster (security) | 1.24.1-1+deb10u2 | fixed | |
| bullseye | 1.26.5-1~exp1 | fixed | |
| bookworm | 1.26.12-1 | fixed | |
| sid, trixie | 1.26.18-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| python-urllib3 | source | jessie | 1.9.1-3+deb8u2 | ELA-1014-1 | ||
| python-urllib3 | source | stretch | 1.19.1-1+deb9u2 | ELA-1014-1 | ||
| python-urllib3 | source | buster | 1.24.1-1+deb10u1 | DLA-3610-1 | ||
| python-urllib3 | source | (unstable) | 1.25.6-4 |
https://github.com/urllib3/urllib3/issues/1510
This issue exists because of an incomplete fix for CVE-2018-20060 (which was case-sensitive).
Fixed by https://github.com/urllib3/urllib3/commit/adb358f8e06865406d1f05e581a16cbea2136fbc (1.25)