The d_print_comp function in cp-demangle.c in libiberty allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted binary, which triggers infinite recursion and a buffer overflow, related to a node having "itself as ancestor more than once."
7.7.1-0ubuntu5~14.04.320131116-1ubuntu0.21:3.10.1-1ubuntu3~14.52.16.1-1015:4.9.3+svn227297-115:4.9.3+svn227297-1build115:4.9.3+svn231177-11:3.4.6+dfsg2-4ubuntu10.9.0+git20140716-67.11.1-0ubuntu1~16.52.1.0-12.1.0-1build120160215-1ubuntu0.2Exploitability
AV:LAC:LPR:NUI:RScope
S:UImpact
C:NI:NA:HCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H