python-pip/don-t-split-git-references-on-unicode-separators.patch
Karolina Surma 73f5d1f9c1 Updates from Fedora 34:
- Backport security fixes from pip 21.1.1
 - Resolve rpmlint warnings & fix changelog typos

Mainly to fix CVE-2021-3572.

Resolves: rhbz#1962856
2021-06-09 17:43:02 +02:00

34 lines
1.2 KiB
Diff

From ca24e4bfa60cec8341ccf40000a41bc9592713df Mon Sep 17 00:00:00 2001
From: Karolina Surma <ksurma@redhat.com>
Date: Mon, 17 May 2021 11:34:30 +0200
Subject: [PATCH] Don't split git references on unicode separators
---
src/pip/_internal/vcs/git.py | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/src/pip/_internal/vcs/git.py b/src/pip/_internal/vcs/git.py
index cc22cd7..308e857 100644
--- a/src/pip/_internal/vcs/git.py
+++ b/src/pip/_internal/vcs/git.py
@@ -147,9 +147,15 @@ class Git(VersionControl):
on_returncode='ignore',
)
refs = {}
- for line in output.strip().splitlines():
+ # NOTE: We do not use splitlines here since that would split on other
+ # unicode separators, which can be maliciously used to install a
+ # different revision.
+ for line in output.strip().split("\n"):
+ line = line.rstrip("\r")
+ if not line:
+ continue
try:
- sha, ref = line.split()
+ sha, ref = line.split(" ", maxsplit=2)
except ValueError:
# Include the offending line to simplify troubleshooting if
# this error ever occurs.
--
2.31.1