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Author SHA1 Message Date
6f36573d52 import UBI git-2.43.7-1.el8_10 2025-07-22 14:20:31 +00:00
06a6eb0ff4 import UBI git-2.43.5-3.el8_10 2025-06-03 02:35:04 +00:00
5 changed files with 304 additions and 6 deletions

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@ -1,2 +1,2 @@
7577a22e233e892dba5cf19a3a57cef2062d01e6 SOURCES/git-2.43.5.tar.sign
31decef72034ae36c8098a9e6bb13a7dd4859fd9 SOURCES/git-2.43.5.tar.xz
ee5544e5682b2dd8bc7cfe0cf8952eb4f04a308f SOURCES/git-2.43.7.tar.sign
4034a9389fe34767a272d7085e9e7d93fb5ff18f SOURCES/git-2.43.7.tar.xz

4
.gitignore vendored
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@ -1,2 +1,2 @@
SOURCES/git-2.43.5.tar.sign
SOURCES/git-2.43.5.tar.xz
SOURCES/git-2.43.7.tar.sign
SOURCES/git-2.43.7.tar.xz

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@ -0,0 +1,219 @@
From 13bb730859857c97f298e9a8c7b68fe00074b3d0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Poho=C5=99elsk=C3=BD?= <opohorel@redhat.com>
Date: Thu, 3 Apr 2025 14:46:53 +0200
Subject: [PATCH] Adds the option to sanitize sideband channel messages
CVE-2024-52005 wasn't fixed by upstream. This patch adds the option
to harden Git against it.
The default behaviour of Git remains unchanged.
Changes are taken from Git for Windows. The only differences are that
by default we are allowing all control characters, the documentation
reflects it and one of the tests has to be invoked with a config
change: `sideband.allowControlCharacters=color`
These commits can also be seen in this upstream PR:
https://github.com/gitgitgadget/git/pull/1853
---
Documentation/config.txt | 2 +
Documentation/config/sideband.txt | 16 ++++++
sideband.c | 78 ++++++++++++++++++++++++++++-
t/t5409-colorize-remote-messages.sh | 30 +++++++++++
4 files changed, 124 insertions(+), 2 deletions(-)
create mode 100644 Documentation/config/sideband.txt
diff --git a/Documentation/config.txt b/Documentation/config.txt
index e3a74dd1c1..5b8bbdee82 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -513,6 +513,8 @@ include::config/sequencer.txt[]
include::config/showbranch.txt[]
+include::config/sideband.txt[]
+
include::config/sparse.txt[]
include::config/splitindex.txt[]
diff --git a/Documentation/config/sideband.txt b/Documentation/config/sideband.txt
new file mode 100644
index 0000000000..1adc831667
--- /dev/null
+++ b/Documentation/config/sideband.txt
@@ -0,0 +1,16 @@
+sideband.allowControlCharacters::
+ By default, control characters that are delivered via the sideband
+ are NOT masked. Use this config setting to prevent potentially
+ unwanted ANSI escape sequences from being sent to the terminal:
++
+--
+ color::
+ Allow ANSI color sequences, line feeds and horizontal tabs,
+ but mask all other control characters.
+ false::
+ Mask all control characters other than line feeds and
+ horizontal tabs.
+ true::
+ Allow all control characters to be sent to the terminal.
+ This is the default.
+--
\ No newline at end of file
diff --git a/sideband.c b/sideband.c
index 266a67342b..316a401a5d 100644
--- a/sideband.c
+++ b/sideband.c
@@ -23,6 +23,12 @@ static struct keyword_entry keywords[] = {
{ "error", GIT_COLOR_BOLD_RED },
};
+static enum {
+ ALLOW_NO_CONTROL_CHARACTERS = 0,
+ ALLOW_ALL_CONTROL_CHARACTERS = 1,
+ ALLOW_ANSI_COLOR_SEQUENCES = 2
+} allow_control_characters = ALLOW_ALL_CONTROL_CHARACTERS;
+
/* Returns a color setting (GIT_COLOR_NEVER, etc). */
static int use_sideband_colors(void)
{
@@ -36,6 +42,25 @@ static int use_sideband_colors(void)
if (use_sideband_colors_cached >= 0)
return use_sideband_colors_cached;
+ switch (git_config_get_maybe_bool("sideband.allowcontrolcharacters", &i)) {
+ case 0: /* Boolean value */
+ allow_control_characters = i ? ALLOW_ALL_CONTROL_CHARACTERS :
+ ALLOW_NO_CONTROL_CHARACTERS;
+ break;
+ case -1: /* non-Boolean value */
+ if (git_config_get_string_tmp("sideband.allowcontrolcharacters",
+ &value))
+ ; /* huh? `get_maybe_bool()` returned -1 */
+ else if (!strcmp(value, "color"))
+ allow_control_characters = ALLOW_ANSI_COLOR_SEQUENCES;
+ else
+ warning(_("unrecognized value for `sideband."
+ "allowControlCharacters`: '%s'"), value);
+ break;
+ default:
+ break; /* not configured */
+ }
+
if (!git_config_get_string(key, &value)) {
use_sideband_colors_cached = git_config_colorbool(key, value);
} else if (!git_config_get_string("color.ui", &value)) {
@@ -64,6 +89,55 @@ void list_config_color_sideband_slots(struct string_list *list, const char *pref
list_config_item(list, prefix, keywords[i].keyword);
}
+static int handle_ansi_color_sequence(struct strbuf *dest, const char *src, int n)
+{
+ int i;
+
+ /*
+ * Valid ANSI color sequences are of the form
+ *
+ * ESC [ [<n> [; <n>]*] m
+ */
+
+ if (allow_control_characters != ALLOW_ANSI_COLOR_SEQUENCES ||
+ n < 3 || src[0] != '\x1b' || src[1] != '[')
+ return 0;
+
+ for (i = 2; i < n; i++) {
+ if (src[i] == 'm') {
+ strbuf_add(dest, src, i + 1);
+ return i;
+ }
+ if (!isdigit(src[i]) && src[i] != ';')
+ break;
+ }
+
+ return 0;
+}
+
+static void strbuf_add_sanitized(struct strbuf *dest, const char *src, int n)
+{
+ int i;
+
+ if (allow_control_characters == ALLOW_ALL_CONTROL_CHARACTERS) {
+ strbuf_add(dest, src, n);
+ return;
+ }
+
+ strbuf_grow(dest, n);
+ for (; n && *src; src++, n--) {
+ if (!iscntrl(*src) || *src == '\t' || *src == '\n')
+ strbuf_addch(dest, *src);
+ else if ((i = handle_ansi_color_sequence(dest, src, n))) {
+ src += i;
+ n -= i;
+ } else {
+ strbuf_addch(dest, '^');
+ strbuf_addch(dest, 0x40 + *src);
+ }
+ }
+}
+
/*
* Optionally highlight one keyword in remote output if it appears at the start
* of the line. This should be called for a single line only, which is
@@ -79,7 +153,7 @@ static void maybe_colorize_sideband(struct strbuf *dest, const char *src, int n)
int i;
if (!want_color_stderr(use_sideband_colors())) {
- strbuf_add(dest, src, n);
+ strbuf_add_sanitized(dest, src, n);
return;
}
@@ -112,7 +186,7 @@ static void maybe_colorize_sideband(struct strbuf *dest, const char *src, int n)
}
}
- strbuf_add(dest, src, n);
+ strbuf_add_sanitized(dest, src, n);
}
diff --git a/t/t5409-colorize-remote-messages.sh b/t/t5409-colorize-remote-messages.sh
index fa5de4500a..3b5ff00363 100755
--- a/t/t5409-colorize-remote-messages.sh
+++ b/t/t5409-colorize-remote-messages.sh
@@ -98,4 +98,34 @@ test_expect_success 'fallback to color.ui' '
grep "<BOLD;RED>error<RESET>: error" decoded
'
+test_expect_success 'disallow (color) control sequences in sideband' '
+ write_script .git/color-me-surprised <<-\EOF &&
+ printf "error: Have you \\033[31mread\\033[m this?\\a\\n" >&2
+ exec "$@"
+ EOF
+ test_config_global uploadPack.packObjectshook ./color-me-surprised &&
+ test_commit need-at-least-one-commit &&
+ git -c sideband.allowControlCharacters=color \
+ clone --no-local . throw-away 2>stderr &&
+ test_decode_color <stderr >decoded &&
+ test_grep RED decoded &&
+ test_grep "\\^G" stderr &&
+ tr -dc "\\007" <stderr >actual &&
+ test_must_be_empty actual &&
+
+ rm -rf throw-away &&
+ git -c sideband.allowControlCharacters=false \
+ clone --no-local . throw-away 2>stderr &&
+ test_decode_color <stderr >decoded &&
+ test_grep ! RED decoded &&
+ test_grep "\\^G" stderr &&
+
+ rm -rf throw-away &&
+ git -c sideband.allowControlCharacters clone --no-local . throw-away 2>stderr &&
+ test_decode_color <stderr >decoded &&
+ test_grep RED decoded &&
+ tr -dc "\\007" <stderr >actual &&
+ test_file_not_empty actual
+'
+
test_done
--
2.49.0

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@ -0,0 +1,59 @@
From 428c9241c6918f52ac22fb8e83ce7c736a2f5e00 Mon Sep 17 00:00:00 2001
From: Todd Zullinger <tmz@pobox.com>
Date: Tue, 8 Jul 2025 17:05:27 -0400
Subject: [PATCH] t: avoid git config syntax from newer releases
In a recent security release, 05e9cd64ee (config: quote values
containing CR character, 2025-05-19) added calls to `git config get`,
`git config set`, and `git config unset` which are not present on the
maint-2.43 branch.
These subcommands were added in the following commits, released in
git-2.46.0:
4e51389000 (builtin/config: introduce "get" subcommand, 2024-05-06),
00bbdde141 (builtin/config: introduce "set" subcommand, 2024-05-06),
95ea69c67b (builtin/config: introduce "unset" subcommand, 2024-05-06)
Revert to the previous `git config` syntax for older maintenance
branches.
Signed-off-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
t/t1300-config.sh | 4 ++--
t/t7450-bad-git-dotfiles.sh | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/t/t1300-config.sh b/t/t1300-config.sh
index 1010410b7e2926..baf9b4823111d5 100755
--- a/t/t1300-config.sh
+++ b/t/t1300-config.sh
@@ -2595,8 +2595,8 @@ test_expect_success 'writing value with trailing CR not stripped on read' '
printf "bar\r\n" >expect &&
git init cr-test &&
- git -C cr-test config set core.foo $(printf "bar\r") &&
- git -C cr-test config get core.foo >actual &&
+ git -C cr-test config core.foo $(printf "bar\r") &&
+ git -C cr-test config --get core.foo >actual &&
test_cmp expect actual
'
diff --git a/t/t7450-bad-git-dotfiles.sh b/t/t7450-bad-git-dotfiles.sh
index 20262855664a97..d1546e3311b27f 100755
--- a/t/t7450-bad-git-dotfiles.sh
+++ b/t/t7450-bad-git-dotfiles.sh
@@ -362,10 +362,10 @@ test_expect_success SYMLINKS,!WINDOWS,!MINGW 'submodule must not checkout into d
git -C repo mv sub $(printf "sub\r") &&
# Ensure config values containing CR are wrapped in quotes.
- git config unset -f repo/.gitmodules submodule.sub.path &&
+ git config --unset -f repo/.gitmodules submodule.sub.path &&
printf "\tpath = \"sub\r\"\n" >>repo/.gitmodules &&
- git config unset -f repo/.git/modules/sub/config core.worktree &&
+ git config --unset -f repo/.git/modules/sub/config core.worktree &&
{
printf "[core]\n" &&
printf "\tworktree = \"../../../sub\r\"\n"

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@ -92,8 +92,8 @@
#global rcrev .rc0
Name: git
Version: 2.43.5
Release: 2%{?rcrev}%{?dist}
Version: 2.43.7
Release: 1%{?rcrev}%{?dist}
Summary: Fast Version Control System
License: GPLv2
URL: https://git-scm.com/
@ -143,6 +143,18 @@ Patch5: 0003-t-lib-git-svn-try-harder-to-find-a-port.patch
# https://github.com/git/git/commit/2386535511d1181afd4e892e2a866ffe5e1d7d21
Patch6: git-2.43.0-slow-shallow-clones.patch
# Adds the option to sanitize sideband channel messages
# CVE-2024-52005 wasn't fixed by upstream. This patch adds the option to harden Git against it.
# The default behaviour of Git remains unchanged.
#
# https://github.com/gitgitgadget/git/pull/1853
Patch7: git-2.43.5-sanitize-sideband-channel-messages.patch
# t: avoid git config syntax from newer releases
#
# https://github.com/git/git/commit/428c9241c6918f52ac22fb8e83ce7c736a2f5e00
Patch8: git-2.43.7-t-avoid-git-config-syntax-from-newer-releases.patch
%if %{with docs}
# pod2man is needed to build Git.3pm
BuildRequires: %{_bindir}/pod2man
@ -1104,6 +1116,14 @@ rmdir --ignore-fail-on-non-empty "$testdir"
%{?with_docs:%{_pkgdocdir}/git-svn.html}
%changelog
* Fri Jul 11 2025 Ondřej Pohořelský <opohorel@redhat.com> - 2.43.7-1
- update to 2.43.7
- Resolves: RHEL-102440, RHEL-102454, RHEL-102674, RHEL-102680
* Fri Apr 04 2025 Ondřej Pohořelský <opohorel@redhat.com> - 2.43.5-3
- add the option to sanitize sideband channel messages
- Resolves: RHEL-74177
* Fri Nov 15 2024 Ondřej Pohořelský <opohorel@redhat.com> - 2.43.5-2
- Sync version with the hotfix branch
- Related: RHEL-64984