CVE-2018-10534 — MEDIUM (5.5)

Vulnerability 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.

CVSS Score

5.5

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gnu	Binutils	2.30
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Workstation	7.0

Related Weaknesses (CWE)

CWE-787

References

http://www.securityfocus.com/bid/104025Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3032Third Party Advisory
https://security.gentoo.org/glsa/201908-01
https://sourceware.org/bugzilla/show_bug.cgi?id=23110Issue TrackingThird Party Advisory
https://usn.ubuntu.com/4336-1/
http://www.securityfocus.com/bid/104025Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3032Third Party Advisory
https://security.gentoo.org/glsa/201908-01
https://sourceware.org/bugzilla/show_bug.cgi?id=23110Issue TrackingThird Party Advisory
https://usn.ubuntu.com/4336-1/

FAQ

What is CVE-2018-10534?

CVE-2018-10534 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 s...

How severe is CVE-2018-10534?

CVE-2018-10534 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-10534?

Check the references section above for vendor advisories and patch information. Affected products include: Gnu Binutils, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.