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CVE-2021-4048
An out-of-bounds read flaw was found in the CLARRV, DLARRV, SLARRV, and ZLARRV functions in lapack through version 3.10.0, as also used in…
Critical9.1EPSS 2.8%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
An out-of-bounds read flaw was found in the CLARRV, DLARRV, SLARRV, and ZLARRV functions in lapack through version 3.10.0, as also used in OpenBLAS before version 0.3.18. Specially crafted inputs passed to these functions could cause an application using lapack to crash or possibly disclose portions of its memory.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.8% · top 14% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.
Weakness
Affected products
lapack
- affected lapack through version 3.10.0
References (9)
- https://github.com/Reference-LAPACK/lapack/pull/625 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/Reference-LAPACK/lapack/commit/38f3eeee3108b18158409ca2a100e6fe03754781 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/JuliaLang/julia/issues/42415 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/xianyi/OpenBLAS/commit/337b65133df174796794871b3988cd03426e6d41 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/xianyi/OpenBLAS/commit/2be5ee3cca97a597f2ee2118808a2d5eacea050c (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/xianyi/OpenBLAS/commit/fe497efa0510466fd93578aaf9da1ad8ed4edbe7 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/xianyi/OpenBLAS/commit/ddb0ff5353637bb5f5ad060c9620e334c143e3d7 (opens in a new tab)x_refsource_MISCx_transferred
- FEDORA-2021-0d4b58060d (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2021-aec9d01057 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
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)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-4048)Record last updated .