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| author | Florian Weimer <fweimer@redhat.com> | 2016-04-29 10:35:34 +0200 |
|---|---|---|
| committer | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2016-05-24 11:35:31 -0300 |
| commit | 1029487ab3b2ef65ec9364cb15c44ee9c571224f (patch) | |
| tree | bcdf22236e9d5a9a13688ff53cc0d0700f366e7c /ChangeLog | |
| parent | edbab2450a084a275d418fba871a8c7b48001a71 (diff) | |
| download | glibc-1029487ab3b2ef65ec9364cb15c44ee9c571224f.zip glibc-1029487ab3b2ef65ec9364cb15c44ee9c571224f.tar.gz glibc-1029487ab3b2ef65ec9364cb15c44ee9c571224f.tar.bz2 | |
CVE-2016-3706: getaddrinfo: stack overflow in hostent conversion [BZ #20010]
When converting a struct hostent response to struct gaih_addrtuple, the
gethosts macro (which is called from gaih_inet) used alloca, without
malloc fallback for large responses. This commit changes this code to
use calloc unconditionally.
This commit also consolidated a second hostent-to-gaih_addrtuple
conversion loop (in gaih_inet) to use the new conversion function.
(cherry picked from commit 4ab2ab03d4351914ee53248dc5aef4a8c88ff8b9)
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -1,3 +1,13 @@ +2016-05-24 Florian Weimer <fweimer@redhat.com> + + [BZ #20010] + CVE-2016-3706 + * sysdeps/posix/getaddrinfo.c + (convert_hostent_to_gaih_addrtuple): New function. + (gethosts): Call convert_hostent_to_gaih_addrtuple. + (gaih_inet): Use convert_hostent_to_gaih_addrtuple to convert + AF_INET data. + 2016-04-28 Stefan Liebler <stli@linux.vnet.ibm.com> [BZ #18508] |