On 05/14/2014 08:21 PM, [email protected] wrote:
From: "yanjun.zhu" <[email protected]>
The Perl_reg_numbered_buff_fetch function in Perl 5.10.0, 5.12.0,
5.14.0, and other versions, when running with debugging enabled,
allows context-dependent attackers to cause a denial of service
(assertion failure and application exit) via crafted input that
is not properly handled when using certain regular expressions,
as demonstrated by causing SpamAssassin and OCSInventory to
crash.
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-4777
Signed-off-by: yanjun.zhu <[email protected]>
Signed-off-by: Roy Li <[email protected]>
---
.../perl-5.14.3-fix-CVE-2010-4777.patch | 30 ++++++++++++++++++++
meta/recipes-devtools/perl/perl-native_5.14.3.bb | 3 +-
meta/recipes-devtools/perl/perl_5.14.3.bb | 3 +-
3 files changed, 34 insertions(+), 2 deletions(-)
create mode 100644
meta/recipes-devtools/perl/perl-5.14.3/perl-5.14.3-fix-CVE-2010-4777.patch
diff --git
a/meta/recipes-devtools/perl/perl-5.14.3/perl-5.14.3-fix-CVE-2010-4777.patch
b/meta/recipes-devtools/perl/perl-5.14.3/perl-5.14.3-fix-CVE-2010-4777.patch
new file mode 100644
index 0000000..bb726c8
--- /dev/null
+++ b/meta/recipes-devtools/perl/perl-5.14.3/perl-5.14.3-fix-CVE-2010-4777.patch
@@ -0,0 +1,30 @@
Another .patch file missing Upstream-Status and Signed-off-by
Sau!
+--- a/regcomp.c
++++ b/regcomp.c
+@@ -11868,8 +11868,25 @@ Perl_save_re_context(pTHX)
+
+ if (gvp) {
+ GV * const gv = *gvp;
+- if (SvTYPE(gv) == SVt_PVGV && GvSV(gv))
+- save_scalar(gv);
++ if (SvTYPE(gv) == SVt_PVGV && GvSV(gv)) {
++ /* this is a copy of save_scalar() without the GETMAGIC
call, RT#76538 */
++ SV ** const sptr = &GvSVn(gv);
++ SV * osv = *sptr;
++ SV * nsv = newSV(0);
++ save_pushptrptr(SvREFCNT_inc_simple(gv),
++ SvREFCNT_inc(osv), SAVEt_SV);
++ if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) &&
++ SvTYPE(osv) != SVt_PVGV) {
++ if (SvGMAGICAL(osv)) {
++ const bool oldtainted = PL_tainted;
++ SvFLAGS(osv) |= (SvFLAGS(osv) &
++ (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
++ PL_tainted = oldtainted;
++ }
++ mg_localize(osv, nsv, 1);
++ }
++ *sptr = nsv;
++ }
+ }
+ }
+ }
diff --git a/meta/recipes-devtools/perl/perl-native_5.14.3.bb
b/meta/recipes-devtools/perl/perl-native_5.14.3.bb
index 2ef0a51..c38be41 100644
--- a/meta/recipes-devtools/perl/perl-native_5.14.3.bb
+++ b/meta/recipes-devtools/perl/perl-native_5.14.3.bb
@@ -17,7 +17,8 @@ SRC_URI = "http://www.cpan.org/src/5.0/perl-${PV}.tar.gz \
file://MM_Unix.pm.patch \
file://debian/errno_ver.diff \
file://dynaloaderhack.patch \
- file://perl-build-in-t-dir.patch"
+ file://perl-build-in-t-dir.patch \
+ file://perl-5.14.3-fix-CVE-2010-4777.patch "
SRC_URI[md5sum] = "f6a3d878c688d111b495c87db56c5be5"
SRC_URI[sha256sum] =
"03638a4f01bc26b81231233671524b4163849a3a9ea5cc2397293080c4ea339f"
diff --git a/meta/recipes-devtools/perl/perl_5.14.3.bb
b/meta/recipes-devtools/perl/perl_5.14.3.bb
index c307b99..fcd665b 100644
--- a/meta/recipes-devtools/perl/perl_5.14.3.bb
+++ b/meta/recipes-devtools/perl/perl_5.14.3.bb
@@ -74,7 +74,8 @@ SRC_URI = "http://www.cpan.org/src/5.0/perl-${PV}.tar.gz \
file://config.sh-32-be \
file://config.sh-64 \
file://config.sh-64-le \
- file://config.sh-64-be"
+ file://config.sh-64-be \
+ file://perl-5.14.3-fix-CVE-2010-4777.patch "
# file://debian/fakeroot.diff
SRC_URI[md5sum] = "f6a3d878c688d111b495c87db56c5be5"
--
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