CVE-2018-18521

MEDIUM
5.5
CVSS Score
Published: October 19, 2018 at 05:00 PM UTC
Updated: June 17, 2026 at 01:47 AM UTC
7 products affected across 5 vendorsDebian LinuxUbuntu LinuxEnterprise Linux Desktop

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Severity
MEDIUM5.5
Exploit prediction
EPSS 2%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (7)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2197
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html
x_refsource_MISCExploitIssue TrackingThird Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=23786
x_refsource_MISCMailing ListPatchThird Party Advisory
https://sourceware.org/ml/elfutils-devel/2018-q4/msg00055.html
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/4012-1/

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-369

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