Hi, we are preparing the glibc 2.23 release upstream and have fixed the following security bugs which, to my best knowledge, lack public CVE assignment so far: Passing out of range data to strftime() causes a segfault https://sourceware.org/bugzilla/show_bug.cgi?id=18985 Out-of-range time values passed to the strftime function may cause it to crash, leading to a denial of service, or potentially disclosure information. LD_POINTER_GUARD is not ignored for privileged binaries https://sourceware.org/bugzilla/show_bug.cgi?id=18928 LD_POINTER_GUARD was an environment variable which controls security-related behavior, but was not ignored for privileged binaries (in AT_SECURE mode). This might allow local attackers (who can supply the environment variable) to bypass intended security restrictions. hcreate((size_t)-1) should fail with ENOMEM https://sourceware.org/bugzilla/show_bug.cgi?id=18240 This is an integer overflow in hcreate and hcreate_r which can result in an out-of-bound memory access. This could lead to application crashes or, potentially, arbitrary code execution. nan function unbounded stack allocation https://sourceware.org/bugzilla/show_bug.cgi?id=16962 A stack overflow (unbounded alloca) can cause applications which process long strings with the nan function to crash or, potentially, execute arbitrary code. catopen() Multiple unbounded stack allocations https://sourceware.org/bugzilla/show_bug.cgi?id=17905 A stack overflow (unbounded alloca) in the catopen function can cause applications which pass long strings to the catopen function to crash or, potentially execute arbitrary code. Several people have asked for CVE assignment for swbz#18928 on oss-security already. Thanks, Florian
when master is updated we should get these for free. Jethro and fido need patching
CVE-2015-8778 does not have a good fix yet.
Jethro and Fido patches submitted.
are we going to pull in glibc 2.23?
yes 2.23 will be release this week or next. Waiting for that.
(In reply to comment #5) > yes 2.23 will be release this week or next. Waiting for that. I have another security fix. it will have to be applied against 2.23. would prefer to do it once for master but time seems to be slipping away. CVE-2015-7547: getaddrinfo() stack-based buffer overflow (Bug 18665). https://sourceware.org/git/?p=glibc.git;a=commit;h=e9db92d3acfe1822d56d11abcea5bfc4c41cf6ca will work on jethro and fido in the mean time.
In the meantime I merged the CVE patches from jethro into master.
master fixed.
Verified.