Topic

An update for binutils is now available for Red Hat Enterprise Linux 7.

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 binutils packages provide a collection of binary utilities for the manipulation of object code in various object file formats. It includes the ar, as, gprof, ld, nm, objcopy, objdump, ranlib, readelf, size, strings, strip, and addr2line utilities.

Security Fix(es):

• binutils: Improper bounds check in coffgen.c:coff_pointerize_aux() allows for denial of service when parsing a crafted COFF file (CVE-2018-7208)
• binutils: integer overflow via an ELF file with corrupt dwarf1 debug information in libbfd library (CVE-2018-7568)
• binutils: integer underflow or overflow via an ELF file with a corrupt DWARF FORM block in libbfd library (CVE-2018-7569)
• binutils: NULL pointer dereference in swap_std_reloc_in function in aoutx.h resulting in crash (CVE-2018-7642)
• binutils: Integer overflow in the display_debug_ranges function resulting in crash (CVE-2018-7643)
• binutils: Crash in elf.c:bfd_section_from_shdr() with crafted executable (CVE-2018-8945)
• binutils: Heap-base buffer over-read in dwarf.c:process_cu_tu_index() allows for denial of service via crafted file (CVE-2018-10372)
• binutils: NULL pointer dereference in dwarf2.c:concat_filename() allows for denial of service via crafted file (CVE-2018-10373)
• binutils: out of bounds memory write in peXXigen.c files (CVE-2018-10534)
• binutils: NULL pointer dereference in elf.c (CVE-2018-10535)
• binutils: Uncontrolled Resource Consumption in execution of nm (CVE-2018-13033)

For more details about the security issue(s), including the impact, a CVSS score, 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 7.6 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 Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux for ARM 64 7 aarch64
• Red Hat Enterprise Linux for Power 9 7 ppc64le
• Red Hat Enterprise Linux for IBM System z (Structure A) 7 s390x

Fixes

• BZ - 1439351 - [LLNL 7.5 FEAT] RFE create an option to permanently link in audit library into an executable (binutils)
• BZ - 1546622 - CVE-2018-7208 binutils: Improper bounds check in coffgen.c:coff_pointerize_aux() allows for denial of service when parsing a crafted COFF file
• BZ - 1551771 - CVE-2018-7568 binutils: integer overflow via an ELF file with corrupt dwarf1 debug information in libbfd library
• BZ - 1551778 - CVE-2018-7569 binutils: integer underflow or overflow via an ELF file with a corrupt DWARF FORM block in libbfd library
• BZ - 1553115 - CVE-2018-7642 binutils: NULL pointer dereference in swap_std_reloc_in function in aoutx.h resulting in crash
• BZ - 1553119 - CVE-2018-7643 binutils: Integer overflow in the display_debug_ranges function resulting in crash
• BZ - 1553842 - Unresolvable `R_X86_64_NONE` relocation
• BZ - 1557346 - collect2: error: ld terminated with signal 11 [Segmentation fault], core dumped
• BZ - 1560827 - CVE-2018-8945 binutils: Crash in elf.c:bfd_section_from_shdr() with crafted executable
• BZ - 1573356 - CVE-2018-10372 binutils: Heap-base buffer over-read in dwarf.c:process_cu_tu_index() allows for denial of service via crafted file
• BZ - 1573365 - CVE-2018-10373 binutils: NULL pointer dereference in dwarf2.c:concat_filename() allows for denial of service via crafted file
• BZ - 1573872 - ld should allow "lea foo@GOT, %ecx"
• BZ - 1574696 - CVE-2018-10534 binutils: out of bounds memory write in peXXigen.c files
• BZ - 1574697 - CVE-2018-10535 binutils: NULL pointer dereference in elf.c
• BZ - 1597436 - CVE-2018-13033 binutils: Uncontrolled Resource Consumption in execution of nm

CVEs

• CVE-2018-7208
• CVE-2018-7568
• CVE-2018-7569
• CVE-2018-7642
• CVE-2018-7643
• CVE-2018-8945
• CVE-2018-10372
• CVE-2018-10373
• CVE-2018-10534
• CVE-2018-10535
• CVE-2018-13033

References

• https://access.redhat.com/security/updates/classification/#low
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.6_release_notes/index