CVE-2019-7309

N/A
Published: February 3, 2019 at 02:00 AM UTC
Updated: October 14, 2026 at 07:16 AM UTC
3 products affected across 3 vendorsGlibcGlibcGNU C Library (glibc)

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Severity
N/A
Exploit prediction
EPSS 0.6%

Description

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.

Affected

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

v ≤ 2.29
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/106835
Vendor Advisoryx_refsource_GENTOO
https://security.gentoo.org/glsa/202006-04
x_refsource_MISCExploitIssue TrackingThird Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=24155
x_refsource_MISCMailing ListThird Party Advisory
https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-398330.html

CVSS

Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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