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package/busybox: add patch for CVE-2025-46394

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Fixes the following vulnerability:

- CVE-2025-46394

In tar in BusyBox through 1.37.0, a TAR archive can have filenames
hidden from a listing through the use of terminal escape sequences.

For more information, see:
  - https://nvd.nist.gov//vuln/detail/CVE-2025-46394
  - https://git.busybox.net/busybox/commit/?id=f5e1bf966b19ea1821f00a8c9ecd7774598689b4
  - https://patchwork.yoctoproject.org/project/oe-core/patch/20250928221332.1308547-1-peter.marko@siemens.com/#31415
  - https://lists.busybox.net/pipermail/busybox/2025-October/091743.html

Signed-off-by: Thomas Perale <thomas.perale@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Thomas Perale
2026-02-02 11:41:37 +01:00
committed by Peter Korsgaard
parent 56254f6cbb
commit 48b56d61bc
3 changed files with 95 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
package/busybox/0012-archival-libarchive-sanitize-filenames-on-output.patch Normal file
View File

@@ -0,0 +1,58 @@
From f5e1bf966b19ea1821f00a8c9ecd7774598689b4 Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Wed, 24 Sep 2025 03:28:47 +0200
Subject: archival/libarchive: sanitize filenames on output (prevent control
sequence attacks
This fixes CVE-2025-46394 (terminal escape sequence injection)
Original credit: Ian.Norton at entrust.com
function old new delta
header_list 9 15 +6
header_verbose_list 239 244 +5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 11/0) Total: 11 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
CVE: CVE-2025-46394
Upstream: https://git.busybox.net/busybox/patch/?id=f5e1bf966b19ea1821f00a8c9ecd7774598689b4
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
---
archival/libarchive/header_list.c | 2 +-
archival/libarchive/header_verbose_list.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/archival/libarchive/header_list.c b/archival/libarchive/header_list.c
index 0621aa406..9490b3635 100644
--- a/archival/libarchive/header_list.c
+++ b/archival/libarchive/header_list.c
@@ -8,5 +8,5 @@
void FAST_FUNC header_list(const file_header_t *file_header)
{
//TODO: cpio -vp DIR should output "DIR/NAME", not just "NAME" */
- puts(file_header->name);
+ puts(printable_string(file_header->name));
}
diff --git a/archival/libarchive/header_verbose_list.c b/archival/libarchive/header_verbose_list.c
index a575a08a0..e7a09430d 100644
--- a/archival/libarchive/header_verbose_list.c
+++ b/archival/libarchive/header_verbose_list.c
@@ -57,13 +57,13 @@ void FAST_FUNC header_verbose_list(const file_header_t *file_header)
ptm->tm_hour,
ptm->tm_min,
ptm->tm_sec,
- file_header->name);
+ printable_string(file_header->name));
#endif /* FEATURE_TAR_UNAME_GNAME */
/* NB: GNU tar shows "->" for symlinks and "link to" for hardlinks */
if (file_header->link_target) {
- printf(" -> %s", file_header->link_target);
+ printf(" -> %s", printable_string(file_header->link_target));
}
bb_putchar('\n');
}
--
cgit v1.2.3

33
package/busybox/0013-testsuite-tar-tests-fix-test-after-cve-2025-46394.patch Normal file
View File

@@ -0,0 +1,33 @@
From 7378db981d87b4a2264e14d60340a7fb5c67ae59 Mon Sep 17 00:00:00 2001
From: Peter Marko <peter.marko@siemens.com>
Date: Fri, 3 Oct 2025 16:12:56 +0200
Subject: [PATCH] testsuite/tar.tests: fix test after CVE-2025-46394
tar now sanitizes output and this test needs to expect that.
Signed-off-by: Peter Marko <peter.marko@siemens.com>
CVE: CVE-2025-46394
Signed-off-by: Peter Marko <peter.marko@siemens.com>
Upstream: https://lists.busybox.net/pipermail/busybox/2025-October/091743.html
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
---
testsuite/tar.tests | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/testsuite/tar.tests b/testsuite/tar.tests
index 0f2e89112..48fc38114 100755
--- a/testsuite/tar.tests
+++ b/testsuite/tar.tests
@@ -325,9 +325,9 @@ unset LANG
rm -rf etc usr
' "\
etc/ssl/certs/3b2716e5.0
-etc/ssl/certs/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.pem
+etc/ssl/certs/EBG_Elektronik_Sertifika_Hizmet_Sa??lay??c??s??.pem
etc/ssl/certs/f80cc7f6.0
-usr/share/ca-certificates/mozilla/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.crt
+usr/share/ca-certificates/mozilla/EBG_Elektronik_Sertifika_Hizmet_Sa??lay??c??s??.crt
0
etc/ssl/certs/3b2716e5.0 -> EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.pem
etc/ssl/certs/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.pem -> /usr/share/ca-certificates/mozilla/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.crt

4
package/busybox/busybox.mk
View File

@@ -15,6 +15,10 @@ BUSYBOX_CPE_ID_VENDOR = busybox
# 0004-nslookup-sanitize-all-printed-strings-with-printable.patch
BUSYBOX_IGNORE_CVES += CVE-2022-28391
# 0012-archival-libarchive-sanitize-filenames-on-output.patch
# 0013-testsuite-tar-tests-fix-test-after-cve-2025-46394.patch
BUSYBOX_IGNORE_CVES += CVE-2025-46394
BUSYBOX_CFLAGS = \
$(TARGET_CFLAGS)