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authorKang Kai <kai.kang@windriver.com>2013-01-24 16:58:15 +0800
committerRichard Purdie <richard.purdie@linuxfoundation.org>2013-03-01 15:38:48 +0000
commita54d4ae89e0b92c413de7e8e1f52eb50ccdf192b (patch)
tree2e63ec3524df948ecd141bb2920bd4cc45aa16c0
parent8cb87526627b9820a9be5698c084df788a433a7b (diff)
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perl: fix security issue
Add perl-fix-CVE-2012-5195.patch to fix perl memory exhaustion denial-of-service attack issue. And patch is from perl 5.14.3 branch: http://perl5.git.perl.org/perl.git/commit/b675304e3fdbcce3ef853b06b6ebe870d99faa7e [Yocto 3701] (From OE-Core rev: b4799833d26eacf60a7590bc5770b3715389fe66) Signed-off-by: Kang Kai <kai.kang@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/recipes-devtools/perl/perl-5.14.2/perl-fix-CVE-2012-5195.patch41
-rw-r--r--meta/recipes-devtools/perl/perl_5.14.2.bb3
2 files changed, 43 insertions, 1 deletions
diff --git a/meta/recipes-devtools/perl/perl-5.14.2/perl-fix-CVE-2012-5195.patch b/meta/recipes-devtools/perl/perl-5.14.2/perl-fix-CVE-2012-5195.patch
new file mode 100644
index 0000000000..da96f9c494
--- /dev/null
+++ b/meta/recipes-devtools/perl/perl-5.14.2/perl-fix-CVE-2012-5195.patch
@@ -0,0 +1,41 @@
+Upstream-Status: Backport
+
+This patch is from perl mainline:
+http://perl5.git.perl.org/perl.git/commit/b675304e3fdbcce3ef853b06b6ebe870d99faa7e
+
+Signed-off-by: Kang Kai <kai.kang@windriver.com>
+
+---
+From b675304e3fdbcce3ef853b06b6ebe870d99faa7e Mon Sep 17 00:00:00 2001
+From: Andy Dougherty <doughera@lafayette.edu>
+Date: Thu, 27 Sep 2012 09:52:18 -0400
+Subject: [PATCH] avoid calling memset with a negative count
+
+Poorly written perl code that allows an attacker to specify the count to
+perl's 'x' string repeat operator can already cause a memory exhaustion
+denial-of-service attack. A flaw in versions of perl before 5.15.5 can
+escalate that into a heap buffer overrun; coupled with versions of glibc
+before 2.16, it possibly allows the execution of arbitrary code.
+
+The flaw addressed to this commit has been assigned identifier
+CVE-2012-5195.
+---
+ util.c | 3 +++
+ 1 files changed, 3 insertions(+), 0 deletions(-)
+
+diff --git a/util.c b/util.c
+index 0ea39c6..230211e 100644
+--- a/util.c
++++ b/util.c
+@@ -3319,6 +3319,9 @@ Perl_repeatcpy(register char *to, register const char *from, I32 len, register I
+ {
+ PERL_ARGS_ASSERT_REPEATCPY;
+
++ if (count < 0)
++ Perl_croak_nocontext("%s",PL_memory_wrap);
++
+ if (len == 1)
+ memset(to, *from, count);
+ else if (count) {
+--
+1.7.4.1
diff --git a/meta/recipes-devtools/perl/perl_5.14.2.bb b/meta/recipes-devtools/perl/perl_5.14.2.bb
index d9206d86d3..d3f6ffdb17 100644
--- a/meta/recipes-devtools/perl/perl_5.14.2.bb
+++ b/meta/recipes-devtools/perl/perl_5.14.2.bb
@@ -7,7 +7,7 @@ LIC_FILES_CHKSUM = "file://Copying;md5=2b4c6ffbcfcbdee469f02565f253d81a \
# We need gnugrep (for -I)
DEPENDS = "virtual/db grep-native"
DEPENDS += "gdbm zlib"
-PR = "r11"
+PR = "r12"
# 5.10.1 has Module::Build built-in
PROVIDES += "libmodule-build-perl"
@@ -67,6 +67,7 @@ SRC_URI = "http://www.cpan.org/src/5.0/perl-${PV}.tar.gz \
file://fix_bad_rpath.patch \
file://perl-build-in-t-dir.patch \
file://perl-archlib-exp.patch \
+ file://perl-fix-CVE-2012-5195.patch \
\
file://config.sh \
file://config.sh-32 \