SB2017040909 - NULL pointer dereference in GNU Binutils

Description

This security bulletin contains information about 1 vulnerability.

1) NULL pointer dereference (CVE-ID: CVE-2017-7614)

CWE-ID: CWE-476 - NULL Pointer Dereference

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

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, has a "member access within null pointer" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via an "int main() {return 0;}" program.

Remediation

Install update from vendor's website.

References

• https://blogs.gentoo.org/ago/2017/04/05/binutils-two-null-pointer-dereference-in-elflink-c/
• https://security.gentoo.org/glsa/201709-02