SB2017012317 - Multiple vulnerabilities in libdwarf

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Integer overflow (CVE-ID: CVE-2016-7511)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Integer overflow in the dwarf_die_deliv.c in libdwarf 20160613 allows remote attackers to cause a denial of service (crash) via a crafted file.

2) Out-of-bounds read (CVE-ID: CVE-2016-7410)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The _dwarf_read_loc_section function in dwarf_loc.c in libdwarf 20160613 allows attackers to cause a denial of service (buffer over-read) via a crafted file.

Remediation

Install update from vendor's website.

References

• https://sourceforge.net/p/libdwarf/bugs/3/
• https://www.prevanders.net/dwarfbug.html#DW201609-002
• http://www.openwall.com/lists/oss-security/2016/09/13/5
• http://www.openwall.com/lists/oss-security/2016/09/15/3
• http://www.securityfocus.com/bid/92971