You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
2.2 KiB
60 lines
2.2 KiB
Git v2.30.6 Release Notes |
|
========================= |
|
|
|
This release addresses the security issues CVE-2022-39253 and |
|
CVE-2022-39260. |
|
|
|
Fixes since v2.30.5 |
|
------------------- |
|
|
|
* CVE-2022-39253: |
|
When relying on the `--local` clone optimization, Git dereferences |
|
symbolic links in the source repository before creating hardlinks |
|
(or copies) of the dereferenced link in the destination repository. |
|
This can lead to surprising behavior where arbitrary files are |
|
present in a repository's `$GIT_DIR` when cloning from a malicious |
|
repository. |
|
|
|
Git will no longer dereference symbolic links via the `--local` |
|
clone mechanism, and will instead refuse to clone repositories that |
|
have symbolic links present in the `$GIT_DIR/objects` directory. |
|
|
|
Additionally, the value of `protocol.file.allow` is changed to be |
|
"user" by default. |
|
|
|
* CVE-2022-39260: |
|
An overly-long command string given to `git shell` can result in |
|
overflow in `split_cmdline()`, leading to arbitrary heap writes and |
|
remote code execution when `git shell` is exposed and the directory |
|
`$HOME/git-shell-commands` exists. |
|
|
|
`git shell` is taught to refuse interactive commands that are |
|
longer than 4MiB in size. `split_cmdline()` is hardened to reject |
|
inputs larger than 2GiB. |
|
|
|
Credit for finding CVE-2022-39253 goes to Cory Snider of Mirantis. The |
|
fix was authored by Taylor Blau, with help from Johannes Schindelin. |
|
|
|
Credit for finding CVE-2022-39260 goes to Kevin Backhouse of GitHub. |
|
The fix was authored by Kevin Backhouse, Jeff King, and Taylor Blau. |
|
|
|
|
|
Jeff King (2): |
|
shell: add basic tests |
|
shell: limit size of interactive commands |
|
|
|
Kevin Backhouse (1): |
|
alias.c: reject too-long cmdline strings in split_cmdline() |
|
|
|
Taylor Blau (11): |
|
builtin/clone.c: disallow `--local` clones with symlinks |
|
t/lib-submodule-update.sh: allow local submodules |
|
t/t1NNN: allow local submodules |
|
t/2NNNN: allow local submodules |
|
t/t3NNN: allow local submodules |
|
t/t4NNN: allow local submodules |
|
t/t5NNN: allow local submodules |
|
t/t6NNN: allow local submodules |
|
t/t7NNN: allow local submodules |
|
t/t9NNN: allow local submodules |
|
transport: make `protocol.file.allow` be "user" by default
|
|
|