Null pointer dereference in elfutils - CVE-2018-18520

Vulnerability identifier: #VU15528

CSH Severity: Low

CVSS v4: 6.9 [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]

CVE-ID: CVE-2018-18520

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to due to improper handling of Executable and Linkable Format (ELF) files by the elf_end function, as defined in the size.c source code file. A remote attacker can trick the victim into opening a specially crafted ELF file that submits malicious input, trigger NULL pointer dereference and cause application to crash.

elfutils
Arch Linux
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Server
SUSE Linux Enterprise Storage
Ubuntu
Opensuse
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Server
SUSE Linux Enterprise Module for Basesystem
openSUSE Leap
Fedora
elfutils (Ubuntu package)
libasm1 (Ubuntu package)
libdw1 (Ubuntu package)
libelf1 (Ubuntu package)
elfutils
elfutils (Red Hat package)
libasm-devel
elfutils-lang
libelf1-32bit-debuginfo
libelf1-32bit
libelf-devel-32bit
libebl-plugins-32bit-debuginfo
libebl-plugins-32bit
libdw1-32bit-debuginfo
libdw1-32bit
libasm1-32bit-debuginfo
libasm1-32bit
libelf1-debuginfo
libelf1
libelf-devel
libebl-plugins-debuginfo
libebl-plugins
libebl-devel
elfutils-debuginfo
libdw1-debuginfo
libdw1
libdw-devel
libasm1-debuginfo
libasm1
elfutils-debugsource
libdwarves-devel-32bit
libdwarves1-32bit-debuginfo
libdwarves1-32bit
dwarves
libdwarves1-debuginfo
libdwarves1
libdwarves-devel
dwarves-debugsource
dwarves-debuginfo
VMware Tanzu Operations Manager
Isolation Segment
VMware Tanzu Application Service for VMs

Install updates from vendor's website.

elfutils (Ubuntu package) - addressed in versions Ubuntu Pro, 0.176-1.1ubuntu0.1
libasm1 (Ubuntu package) - addressed in versions Ubuntu Pro, 0.176-1.1ubuntu0.1
libdw1 (Ubuntu package) - addressed in versions Ubuntu Pro, 0.176-1.1ubuntu0.1
libelf1 (Ubuntu package) - addressed in versions Ubuntu Pro, 0.176-1.1ubuntu0.1
elfutils - addressed in versions 0.174-5.fc28, 0.174-5.fc29
elfutils (Red Hat package) - update to 0.176-2.el7
libasm-devel - update to 0.177-150300.11.3.1
elfutils-lang - update to 0.177-150300.11.3.1
libelf1-32bit-debuginfo - update to 0.177-150300.11.3.1
libelf1-32bit - update to 0.177-150300.11.3.1
libelf-devel-32bit - update to 0.177-150300.11.3.1
libebl-plugins-32bit-debuginfo - update to 0.177-150300.11.3.1
libebl-plugins-32bit - update to 0.177-150300.11.3.1
libdw1-32bit-debuginfo - update to 0.177-150300.11.3.1
libdw1-32bit - update to 0.177-150300.11.3.1
libasm1-32bit-debuginfo - update to 0.177-150300.11.3.1
libasm1-32bit - update to 0.177-150300.11.3.1
libelf1-debuginfo - update to 0.177-150300.11.3.1
libelf1 - update to 0.177-150300.11.3.1
libelf-devel - update to 0.177-150300.11.3.1
libebl-plugins-debuginfo - update to 0.177-150300.11.3.1
libebl-plugins - update to 0.177-150300.11.3.1
libebl-devel - update to 0.177-150300.11.3.1
elfutils - update to 0.177-150300.11.3.1
elfutils-debuginfo - update to 0.177-150300.11.3.1
libdw1-debuginfo - update to 0.177-150300.11.3.1
libdw1 - update to 0.177-150300.11.3.1
libdw-devel - update to 0.177-150300.11.3.1
libasm1-debuginfo - update to 0.177-150300.11.3.1
libasm1 - update to 0.177-150300.11.3.1
elfutils-debugsource - update to 0.177-150300.11.3.1
libdwarves-devel-32bit - update to 1.22-150300.7.3.1
libdwarves1-32bit-debuginfo - update to 1.22-150300.7.3.1
libdwarves1-32bit - update to 1.22-150300.7.3.1
dwarves - update to 1.22-150300.7.3.1
libdwarves1-debuginfo - update to 1.22-150300.7.3.1
libdwarves1 - update to 1.22-150300.7.3.1
libdwarves-devel - update to 1.22-150300.7.3.1
dwarves-debugsource - update to 1.22-150300.7.3.1
dwarves-debuginfo - update to 1.22-150300.7.3.1
VMware Tanzu Operations Manager - update to 2.10.61
Isolation Segment - addressed in versions 3.0.17, 4.0.9
VMware Tanzu Application Service for VMs - addressed in versions 3.0.17, 4.0.9

• https://sourceware.org/bugzilla/show_bug.cgi?id=23787
• https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html

• Denial of service vulnerabilities in elfutils
• Arch Linux update for elfutils
• Arch Linux update for elfutils
• OpenSUSE Linux update for elfutils
• SUSE update for dwarves and elfutils
• Red Hat Enterprise Linux 7 update for elfutils
• Ubuntu update for elfutils
• VMware Tanzu products update for elfutils
• Fedora 29 update for elfutils
• Fedora 28 update for elfutils