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authoryanjun.zhu <yanjun.zhu@windriver.com>2014-05-20 09:27:47 +0800
committerRichard Purdie <richard.purdie@linuxfoundation.org>2014-05-27 16:11:54 +0100
commit284a9b5f6bd35fec5db8854ca1c8af52e02a1542 (patch)
tree28376807016a4c00cbfcc4a894d6753f61770e0a /meta
parentc8645caf56228da1bd4f448dbf90066911a1c59d (diff)
downloadpoky-284a9b5f6bd35fec5db8854ca1c8af52e02a1542.tar.gz
perl: fix for CVE-2010-4777
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 (From OE-Core rev: 368df9f13ddf124e6aaaec06c02ab698c9e0b6c3) Signed-off-by: yanjun.zhu <yanjun.zhu@windriver.com> Signed-off-by: Roy Li <rongqing.li@windriver.com> Signed-off-by: Saul Wold <sgw@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta')
-rw-r--r--meta/recipes-devtools/perl/perl-5.14.3/perl-5.14.3-fix-CVE-2010-4777.patch45
-rw-r--r--meta/recipes-devtools/perl/perl-native_5.14.3.bb3
-rw-r--r--meta/recipes-devtools/perl/perl_5.14.3.bb3
3 files changed, 49 insertions, 2 deletions
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 0000000000..e0dcf412bb
--- /dev/null
+++ b/meta/recipes-devtools/perl/perl-5.14.3/perl-5.14.3-fix-CVE-2010-4777.patch
@@ -0,0 +1,45 @@
1perl:fix for CVE-2010-4777
2
3Upstream-Status: Backport
4
5The Perl_reg_numbered_buff_fetch function in Perl 5.10.0, 5.12.0,
65.14.0, and other versions, when running with debugging enabled,
7allows context-dependent attackers to cause a denial of service
8(assertion failure and application exit) via crafted input that
9is not properly handled when using certain regular expressions,
10as demonstrated by causing SpamAssassin and OCSInventory to
11crash.
12
13http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-4777
14
15Signed-off-by: yanjun.zhu <yanjun.zhu@windriver.com>
16--- a/regcomp.c
17+++ b/regcomp.c
18@@ -11868,8 +11868,25 @@ Perl_save_re_context(pTHX)
19
20 if (gvp) {
21 GV * const gv = *gvp;
22- if (SvTYPE(gv) == SVt_PVGV && GvSV(gv))
23- save_scalar(gv);
24+ if (SvTYPE(gv) == SVt_PVGV && GvSV(gv)) {
25+ /* this is a copy of save_scalar() without the GETMAGIC call, RT#76538 */
26+ SV ** const sptr = &GvSVn(gv);
27+ SV * osv = *sptr;
28+ SV * nsv = newSV(0);
29+ save_pushptrptr(SvREFCNT_inc_simple(gv),
30+ SvREFCNT_inc(osv), SAVEt_SV);
31+ if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) &&
32+ SvTYPE(osv) != SVt_PVGV) {
33+ if (SvGMAGICAL(osv)) {
34+ const bool oldtainted = PL_tainted;
35+ SvFLAGS(osv) |= (SvFLAGS(osv) &
36+ (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
37+ PL_tainted = oldtainted;
38+ }
39+ mg_localize(osv, nsv, 1);
40+ }
41+ *sptr = nsv;
42+ }
43 }
44 }
45 }
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 2ef0a5135c..c38be41d49 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-${PV}.tar.gz \
17 file://MM_Unix.pm.patch \ 17 file://MM_Unix.pm.patch \
18 file://debian/errno_ver.diff \ 18 file://debian/errno_ver.diff \
19 file://dynaloaderhack.patch \ 19 file://dynaloaderhack.patch \
20 file://perl-build-in-t-dir.patch" 20 file://perl-build-in-t-dir.patch \
21 file://perl-5.14.3-fix-CVE-2010-4777.patch "
21 22
22SRC_URI[md5sum] = "f6a3d878c688d111b495c87db56c5be5" 23SRC_URI[md5sum] = "f6a3d878c688d111b495c87db56c5be5"
23SRC_URI[sha256sum] = "03638a4f01bc26b81231233671524b4163849a3a9ea5cc2397293080c4ea339f" 24SRC_URI[sha256sum] = "03638a4f01bc26b81231233671524b4163849a3a9ea5cc2397293080c4ea339f"
diff --git a/meta/recipes-devtools/perl/perl_5.14.3.bb b/meta/recipes-devtools/perl/perl_5.14.3.bb
index c307b99fae..fcd665bf34 100644
--- a/meta/recipes-devtools/perl/perl_5.14.3.bb
+++ b/meta/recipes-devtools/perl/perl_5.14.3.bb
@@ -74,7 +74,8 @@ SRC_URI = "http://www.cpan.org/src/5.0/perl-${PV}.tar.gz \
74 file://config.sh-32-be \ 74 file://config.sh-32-be \
75 file://config.sh-64 \ 75 file://config.sh-64 \
76 file://config.sh-64-le \ 76 file://config.sh-64-le \
77 file://config.sh-64-be" 77 file://config.sh-64-be \
78 file://perl-5.14.3-fix-CVE-2010-4777.patch "
78# file://debian/fakeroot.diff 79# file://debian/fakeroot.diff
79 80
80SRC_URI[md5sum] = "f6a3d878c688d111b495c87db56c5be5" 81SRC_URI[md5sum] = "f6a3d878c688d111b495c87db56c5be5"