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CVE-2019-7309

Date: August 24, 2020

In the GNU C Library (aka glibc or libc6) through 2.29, the memcmp function for the x32 architecture can incorrectly return zero (indicating that the inputs are equal) because the RDX most significant bit is mishandled.

Language: DEBIAN

Severity Score

Related Resources (7)

https://sourceware.org/bugzilla/show_bug.cgi?id=24155
https://nvd.nist.gov/vuln/detail/CVE-2019-7309
https://security.gentoo.org/glsa/202006-04
https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html
https://security-tracker.debian.org/tracker/CVE-2019-7309
http://www.securityfocus.com/bid/106835
https://www.mend.io/vulnerability-database/CVE-2019-7309

Severity Score

Weakness Type (CWE)

Buffer Errors

CWE-119

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

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

CVSS v2

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

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