ALAS2-2019-1337


Amazon Linux 2 Security Advisory: ALAS-2019-1337
Advisory Release Date: 2019-10-21 18:01 Pacific
Advisory Updated Date: 2019-10-24 00:04 Pacific
Severity: Low

Issue Overview:

An out-of-bounds read was discovered in elfutils in the way it reads DWARF address ranges information. Function dwarf_getaranges() in dwarf_getaranges.c does not properly check whether it reads beyond the limits of the ELF section. An attacker could use this flaw to cause a denial of service via a crafted file.(CVE-2018-16062 )

libelf/elf_end.c in elfutils 0.173 allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact because it tries to decompress twice.(CVE-2018-16402 )

libdw in elfutils 0.173 checks the end of the attributes list incorrectly in dwarf_getabbrev in dwarf_getabbrev.c and dwarf_hasattr in dwarf_hasattr.c, leading to a heap-based buffer over-read and an application crash.(CVE-2018-16403 )

An invalid memory address dereference was discovered in dwfl_segment_report_module.c in libdwfl in elfutils through v0.174. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by consider_notes.(CVE-2018-18310 )

An Invalid Memory Address Dereference exists in the function elf_end in libelf in elfutils through v0.174. Although eu-size is intended to support ar files inside ar files, handle_ar in size.c closes the outer ar file before handling all inner entries. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file.(CVE-2018-18520 )

Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero sh_entsize is mishandled.(CVE-2018-18521 )

A heap-based buffer over-read was discovered in the function read_srclines in dwarf_getsrclines.c in libdw in elfutils 0.175. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by eu-nm.(CVE-2019-7149 )

An issue was discovered in elfutils 0.175. A segmentation fault can occur in the function elf64_xlatetom in libelf/elf32_xlatetom.c, due to dwfl_segment_report_module not checking whether the dyn data read from a core file is truncated. A crafted input can cause a program crash, leading to denial-of-service, as demonstrated by eu-stack.(CVE-2019-7150 )

In elfutils 0.175, a negative-sized memcpy is attempted in elf_cvt_note in libelf/note_xlate.h because of an incorrect overflow check. Crafted elf input causes a segmentation fault, leading to denial of service (program crash).(CVE-2019-7664 )

In elfutils 0.175, a heap-based buffer over-read was discovered in the function elf32_xlatetom in elf32_xlatetom.c in libelf. A crafted ELF input can cause a segmentation fault leading to denial of service (program crash) because ebl_core_note does not reject malformed core file notes.(CVE-2019-7665 )


Affected Packages:

elfutils


Issue Correction:
Run yum update elfutils to update your system.

New Packages:
aarch64:
    elfutils-0.176-2.amzn2.aarch64
    elfutils-libs-0.176-2.amzn2.aarch64
    elfutils-devel-0.176-2.amzn2.aarch64
    elfutils-devel-static-0.176-2.amzn2.aarch64
    elfutils-libelf-0.176-2.amzn2.aarch64
    elfutils-libelf-devel-0.176-2.amzn2.aarch64
    elfutils-libelf-devel-static-0.176-2.amzn2.aarch64
    elfutils-debuginfo-0.176-2.amzn2.aarch64

i686:
    elfutils-0.176-2.amzn2.i686
    elfutils-libs-0.176-2.amzn2.i686
    elfutils-devel-0.176-2.amzn2.i686
    elfutils-devel-static-0.176-2.amzn2.i686
    elfutils-libelf-0.176-2.amzn2.i686
    elfutils-libelf-devel-0.176-2.amzn2.i686
    elfutils-libelf-devel-static-0.176-2.amzn2.i686
    elfutils-debuginfo-0.176-2.amzn2.i686

noarch:
    elfutils-default-yama-scope-0.176-2.amzn2.noarch

src:
    elfutils-0.176-2.amzn2.src

x86_64:
    elfutils-0.176-2.amzn2.x86_64
    elfutils-libs-0.176-2.amzn2.x86_64
    elfutils-devel-0.176-2.amzn2.x86_64
    elfutils-devel-static-0.176-2.amzn2.x86_64
    elfutils-libelf-0.176-2.amzn2.x86_64
    elfutils-libelf-devel-0.176-2.amzn2.x86_64
    elfutils-libelf-devel-static-0.176-2.amzn2.x86_64
    elfutils-debuginfo-0.176-2.amzn2.x86_64