Synopsis

Low: elfutils security, bug fix, and enhancement update

Type/Severity

Security Advisory: Low

Topic

An update for elfutils is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The elfutils packages contain a number of utility programs and libraries related to the creation and maintenance of executable code.

The following packages have been upgraded to a later upstream version: elfutils (0.176). (BZ#1683705)

Security Fix(es):

• elfutils: buffer over-read in the ebl_object_note function in eblobjnote.c in libebl (CVE-2019-7146)
• elfutils: heap-based buffer over-read in read_srclines in dwarf_getsrclines.c in libdw (CVE-2019-7149)
• elfutils: segmentation fault in elf64_xlatetom in libelf/elf32_xlatetom.c (CVE-2019-7150)
• elfutils: out of bound write in elf_cvt_note in libelf/note_xlate.h (CVE-2019-7664)
• elfutils: heap-based buffer over-read in function elf32_xlatetom in elf32_xlatetom.c (CVE-2019-7665)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64
• Red Hat CodeReady Linux Builder for x86_64 8 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 8 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 8 s390x

Fixes

• BZ - 1671432 - CVE-2019-7146 elfutils: buffer over-read in the ebl_object_note function in eblobjnote.c in libebl
• BZ - 1671443 - CVE-2019-7149 elfutils: heap-based buffer over-read in read_srclines in dwarf_getsrclines.c in libdw
• BZ - 1671446 - CVE-2019-7150 elfutils: segmentation fault in elf64_xlatetom in libelf/elf32_xlatetom.c
• BZ - 1674430 - RFE: support reading compressed ELF objects
• BZ - 1677536 - CVE-2019-7664 elfutils: out of bound write in elf_cvt_note in libelf/note_xlate.h
• BZ - 1677538 - CVE-2019-7665 elfutils: heap-based buffer over-read in function elf32_xlatetom in elf32_xlatetom.c
• BZ - 1705138 - elfutils xlate (cross-endian) functions might not convert an ELF Note header

CVEs

• CVE-2019-7146
• CVE-2019-7149
• CVE-2019-7150
• CVE-2019-7664
• CVE-2019-7665

References