CVE-2018-18309

MEDIUM

Description

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. An invalid memory address dereference was discovered in read_reloc in reloc.c. The vulnerability causes a segmentation fault and application crash, which leads to denial of service, as demonstrated by objdump, because of missing _bfd_clear_contents bounds checking.

References

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html

http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html

http://www.securityfocus.com/bid/105692

https://sourceware.org/bugzilla/show_bug.cgi?id=23770

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=0930cb3021b8078b34cf216e79eb8608d017864f

Details

Source: MITRE

Published: 2018-10-15

Updated: 2019-10-31

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM