Your message dated Sat, 06 Sep 2025 12:14:50 +0100
with message-id
<ee4c0876608d99eb3f8b333b556fbd92e7a652eb.ca...@adam-barratt.org.uk>
and subject line Closing p-u requests for fixes included in 12.12
has caused the Debian Bug report #1107116,
regarding bookworm-pu: package libyaml-libyaml-perl/0.86+ds-1+deb12u1
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1107116: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1107116
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: release.debian.org
Severity: normal
Tags: bookworm
X-Debbugs-Cc: [email protected], [email protected],
Debian Perl Group <[email protected]>
Control: affects -1 + src:libyaml-libyaml-perl
User: [email protected]
Usertags: pu
Hi Stable release managers,
[ Reason ]
libyaml-libyaml-perl is vulnerable to CVE-2025-40908, where LoadFile
uses a 2-args open, which allows to truncate existing files. Do not
think this warrants a DSA, so switching hat to Perl team, proposing a
bookworm-pu update.
[ Impact ]
Remains otherwise vulnerable to CVE-2025-40908.
[ Tests ]
Manual test, as the upstream version does not (yet) contain a testcase
in the testsuite.
[ Risks ]
Switches to the unsafe 2-args open call to the 3-args open call,
should be fairly riskless and exposed as fix in unstable and testing
since a while now.
[ Checklist ]
[x] *all* changes are documented in the d/changelog
[x] I reviewed all changes and I approve them
[x] attach debdiff against the package in (old)stable
[x] the issue is verified as fixed in unstable
[ Changes ]
As per above, switch from 2-args open to the 3-args open.
[ Other info ]
None.
Regards,
Salvatore
diff -Nru libyaml-libyaml-perl-0.86+ds/debian/changelog
libyaml-libyaml-perl-0.86+ds/debian/changelog
--- libyaml-libyaml-perl-0.86+ds/debian/changelog 2023-01-30
20:54:32.000000000 +0100
+++ libyaml-libyaml-perl-0.86+ds/debian/changelog 2025-06-01
21:07:59.000000000 +0200
@@ -1,3 +1,10 @@
+libyaml-libyaml-perl (0.86+ds-1+deb12u1) bookworm; urgency=medium
+
+ * Team upload.
+ * Use 3-arg form of open in LoadFile (CVE-2025-40908)
+
+ -- Salvatore Bonaccorso <[email protected]> Sun, 01 Jun 2025 21:07:59 +0200
+
libyaml-libyaml-perl (0.86+ds-1) unstable; urgency=medium
* Import upstream versions 0.85+ds, 0.86+ds.
diff -Nru
libyaml-libyaml-perl-0.86+ds/debian/patches/Use-3-arg-form-of-open-in-LoadFile.patch
libyaml-libyaml-perl-0.86+ds/debian/patches/Use-3-arg-form-of-open-in-LoadFile.patch
---
libyaml-libyaml-perl-0.86+ds/debian/patches/Use-3-arg-form-of-open-in-LoadFile.patch
1970-01-01 01:00:00.000000000 +0100
+++
libyaml-libyaml-perl-0.86+ds/debian/patches/Use-3-arg-form-of-open-in-LoadFile.patch
2025-06-01 21:07:59.000000000 +0200
@@ -0,0 +1,31 @@
+From: =?UTF-8?q?Tina=20M=C3=BCller?= <[email protected]>
+Date: Wed, 29 Jan 2025 21:17:28 +0100
+Subject: Use 3-arg form of open in LoadFile
+Origin:
https://github.com/ingydotnet/yaml-libyaml-pm/commit/5fe9daed726c06900c3cd41a739460057bec6dc3
+Bug-Debian-Security: https://security-tracker.debian.org/tracker/CVE-2025-40908
+
+Fixes https://github.com/ingydotnet/yaml-libyaml-pm/issues/120
+
+Otherwise `$filename = ">file.yaml"; LoadFile($filename)` will truncate a file.
+
+One should check untrusted filenames in any case, though.
+---
+ lib/YAML/XS.pm | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/YAML/XS.pm b/lib/YAML/XS.pm
+index 66ff5bac7d15..e8df694dd51e 100644
+--- a/lib/YAML/XS.pm
++++ b/lib/YAML/XS.pm
+@@ -54,7 +54,7 @@ sub LoadFile {
+ $IN = $filename;
+ }
+ else {
+- open $IN, $filename
++ open $IN, '<', $filename
+ or die "Can't open '$filename' for input:\n$!";
+ }
+ return YAML::XS::LibYAML::Load(do { local $/; local $_ = <$IN> });
+--
+2.49.0
+
diff -Nru libyaml-libyaml-perl-0.86+ds/debian/patches/series
libyaml-libyaml-perl-0.86+ds/debian/patches/series
--- libyaml-libyaml-perl-0.86+ds/debian/patches/series 2023-01-30
20:54:32.000000000 +0100
+++ libyaml-libyaml-perl-0.86+ds/debian/patches/series 2025-06-01
21:07:59.000000000 +0200
@@ -1 +1,2 @@
system-libyaml.patch
+Use-3-arg-form-of-open-in-LoadFile.patch
--- End Message ---
--- Begin Message ---
Package: release.debian.org
Version: 12.12
Hi,
Each of the updates referenced by these requests was included in
today's 12.12 point release for bookworm.
Regards,
Adam
--- End Message ---
