Buffer overflow in the gethostbyname_r and other unspecified NSS functions in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response, which triggers a call with a misaligned buffer.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1781
Reference (s):
- BID:74255
- URL: http://www.securityfocus.com/bid/74255
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- https://sourceware.org/bugzilla/show_bug.cgi?id=18287
- https://sourceware.org/git/?p=glibc.git;a=commit;h=2959eda9272a03386