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CVE-2018-18521

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Date: October 19, 2018

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.

Language: C

Severity Score

Related Resources (12)

https://usn.ubuntu.com/4012-1/
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-18521
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html
https://sourceware.org/ml/elfutils-devel/2018-q4/msg00055.html
https://security-tracker.debian.org/tracker/CVE-2018-18521
https://nvd.nist.gov/vuln/detail/CVE-2018-18521
https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html
https://sourceware.org/bugzilla/show_bug.cgi?id=23786
https://access.redhat.com/errata/RHSA-2019:2197
https://access.redhat.com/security/cve/CVE-2018-18521
https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html
https://www.mend.io/vulnerability-database/CVE-2018-18521

Severity Score

Weakness Type (CWE)

Divide By Zero

CWE-369

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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