Medium severity5.5OSV Advisory· Published Feb 3, 2019· Updated Jun 17, 2026

CVE-2019-7309

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

GNU/GlibcOSV3 versions
cvs/ChangeLog, cvs/amigados-merge, cvs/before-thomas-posix1996, …+ 2 more
- (no CPE)range: cvs/ChangeLog, cvs/amigados-merge, cvs/before-thomas-posix1996, …
- cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:x86:*range: <=2.29
- (no CPE)range: <=2.29
GNU/libc6llm-fuzzy
Range: <=2.29
GNU/C Libraryllm-fuzzy
Range: <=2.29
osv-coords
pkg:rpm/opensuse/glibc&distro=openSUSE%20Tumbleweed
Range: < 2.34-1.2

Patches

Vulnerability mechanics

References

sourceware.org/bugzilla/show_bug.cginvdExploitIssue TrackingThird Party Advisory
www.securityfocus.com/bid/106835nvdThird Party AdvisoryVDB Entry
security.gentoo.org/glsa/202006-04nvd

News mentions

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cvss	0.358
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000