SB2017012317 - Multiple vulnerabilities in libdwarf

Description

This security bulletin contains information about 2 vulnerabilities.

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

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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