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CVE-2018-20673

Date: January 4, 2019

The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for "Create an array for saving the template argument values") that can trigger a heap-based buffer overflow, as demonstrated by nm.

Language: C

Severity Score

Related Resources (6)

http://www.securityfocus.com/bid/106454
https://security-tracker.debian.org/tracker/CVE-2018-20673
https://access.redhat.com/security/cve/CVE-2018-20673
https://nvd.nist.gov/vuln/detail/CVE-2018-20673
https://sourceware.org/bugzilla/show_bug.cgi?id=24039
https://www.mend.io/vulnerability-database/CVE-2018-20673

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Out-of-bounds Write

CWE-787

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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