Multiple stack-based buffer overflows in unrtf 0.21.9 allow remote attackers to cause a denial-of-service by writing a negative integer to the (1) cmd_expand function, (2) cmd_emboss function, or (3) cmd_engrave function.

References

• https://nvd.nist.gov/vuln/detail/CVE-2016-10091
• https://bugzilla.redhat.com/show_bug.cgi?id=1409546
• http://hg.savannah.gnu.org/hgweb/unrtf/rev/3b16893a6406
• http://www.openwall.com/lists/oss-security/2016/12/31/3
• http://www.openwall.com/lists/oss-security/2017/01/01/1
• http://www.securityfocus.com/bid/95173