CVE-2018-10534

medium

Description

The _bfd_XX_bfd_copy_private_bfd_data_common function in peXXigen.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, processes a negative Data Directory size with an unbounded loop that increases the value of (external_IMAGE_DEBUG_DIRECTORY) *edd so that the address exceeds its own memory region, resulting in an out-of-bounds memory write, as demonstrated by objcopy copying private info with _bfd_pex64_bfd_copy_private_bfd_data_common in pex64igen.c.

References

https://usn.ubuntu.com/4336-1/

https://sourceware.org/bugzilla/show_bug.cgi?id=23110

https://security.gentoo.org/glsa/201908-01

https://access.redhat.com/errata/RHSA-2018:3032

https://access.redhat.com/errata/RHBA-2019:0327

http://www.securityfocus.com/bid/104025

Details

Source: Mitre, NVD

Published: 2018-04-29

Updated: 2019-08-03

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 5.5

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

Severity: Medium