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CVE-2019-7309
In the GNU C Library (aka glibc or libc6) through 2.29, the memcmp function for the x32 architecture can incorrectly return zero…
Medium5.5EPSS 0.61%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.61% · top 51% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (5)
- 106835 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://sourceware.org/bugzilla/show_bug.cgi?id=24155 (opens in a new tab)x_refsource_MISCx_transferred
- https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html (opens in a new tab)x_refsource_MISCx_transferred
- GLSA-202006-04 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2019-7309)Record last updated .