Elfutils
CVE-2018-18521
MEDIUM
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
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. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available.
Technical ContextAI
This vulnerability is classified under CWE-369. 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. Affected products include: Elfutils Project Elfutils, Debian Debian Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
libelf/elf_end.c in elfutils 0.173 allows remote attackers to cause a denial of service (double free and application cra
elfutils 0.170 has a buffer over-read in the ebl_dynamic_tag_name function of libebl/ebldynamictagname.c because SYMTAB_
A heap-based buffer over-read was discovered in the function read_srclines in dwarf_getsrclines.c in libdw in elfutils 0
An attempted excessive memory allocation was discovered in the function read_long_names in elf_begin.c in libelf in elfu
An Invalid Memory Address Dereference exists in the function elf_end in libelf in elfutils through v0.174. Rated medium
elflint.c in elfutils 0.168 does not validate the number of sections and the number of segments, which allows remote att
The handle_gnu_hash function in readelf.c in elfutils 0.168 allows remote attackers to cause a denial of service (heap-b
The check_sysv_hash function in elflint.c in elfutils 0.168 allows remote attackers to cause a denial of service (heap-b
The check_group function in elflint.c in elfutils 0.168 allows remote attackers to cause a denial of service (heap-based
The ebl_object_note_type_name function in eblobjnotetypename.c in elfutils 0.168 allows remote attackers to cause a deni
The check_symtab_shndx function in elflint.c in elfutils 0.168 allows remote attackers to cause a denial of service (hea
elf_compress.c in elfutils 0.168 does not validate the zlib compression factor, which allows remote attackers to cause a
Same weakness CWE-369 – Divide By Zero
View allSame technique Denial Of Service
View allShare
External POC / Exploit Code
Leaving vuln.today