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 | 45 ++++++++++++++++++++ meta/recipes-devtools/perl/perl-native_5.14.3.bb | 3 +- meta/recipes-devtools/perl/perl_5.14.3.bb | 3 +- 3 files changed, 49 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..da3c545 --- /dev/null +++ b/meta/recipes-devtools/perl/perl-5.14.3/perl-5.14.3-fix-CVE-2010-4777.patch @@ -0,0 +1,45 @@ +perl:fix for CVE-2010-4777 + +Upstream-Status: Backport + +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]> +--- 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" -- 1.7.10.4 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
