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 OpenBLAS before version 0.3.18. Specially crafted inputs
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.76% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 85.7% of scored records. A rank, not a probability.
- NVD base score
- 9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-12-08 21:24Z4 YR AGO
- Last updated
- 2024-08-03 17:16Z2 YR AGO
- Reserved
- 2021-12-02
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-125Out-of-bounds ReadBase
- Data version
- 5.1
- Document digest
- 1b43aa9c2ddeab5cb7b45947e4889b9d214c16659a15fdc17ae45470ec17de46
05 Affected products
06 References
- github.comhttps://github.com/Reference-LAPACK/lapack/pull/625
- github.comhttps://github.com/Reference-LAPACK/lapack/commit/38f3eeee3108b18158409ca2a100e6fe03754781
- github.comhttps://github.com/JuliaLang/julia/issues/42415
- github.comhttps://github.com/xianyi/OpenBLAS/commit/337b65133df174796794871b3988cd03426e6d41
- github.comhttps://github.com/xianyi/OpenBLAS/commit/2be5ee3cca97a597f2ee2118808a2d5eacea050c
- github.comhttps://github.com/xianyi/OpenBLAS/commit/fe497efa0510466fd93578aaf9da1ad8ed4edbe7
- github.comhttps://github.com/xianyi/OpenBLAS/commit/ddb0ff5353637bb5f5ad060c9620e334c143e3d7
- lists.fedoraproject.orgFEDORA-2021-0d4b58060dhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DROZM4M2QRKSD6FBO4BHSV2QMIRJQPHT/
- lists.fedoraproject.orgFEDORA-2021-aec9d01057https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6QFEVOCUG2UXMVMFMTU4ONJVDEHY2LW2/
07 Fixed in
AlmaLinux 8
- openblas Fixed in 0.3.15-4.el8
- openblas-Rblas Fixed in 0.3.15-4.el8
- openblas-devel Fixed in 0.3.15-4.el8
- openblas-openmp Fixed in 0.3.15-4.el8
- openblas-openmp64 Fixed in 0.3.15-4.el8
- openblas-openmp64_ Fixed in 0.3.15-4.el8
- openblas-serial64 Fixed in 0.3.15-4.el8
- openblas-serial64_ Fixed in 0.3.15-4.el8
- openblas-static Fixed in 0.3.15-4.el8
- openblas-threads Fixed in 0.3.15-4.el8
- openblas-threads64 Fixed in 0.3.15-4.el8
- openblas-threads64_ Fixed in 0.3.15-4.el8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- openblas Fixed in 0.3.15-4.el8
- openblas-Rblas Fixed in 0.3.15-4.el8
- openblas-devel Fixed in 0.3.15-4.el8
- openblas-openmp Fixed in 0.3.15-4.el8
- openblas-openmp64 Fixed in 0.3.15-4.el8
- openblas-openmp64_ Fixed in 0.3.15-4.el8
- openblas-serial64 Fixed in 0.3.15-4.el8
- openblas-serial64_ Fixed in 0.3.15-4.el8
- openblas-static Fixed in 0.3.15-4.el8
- openblas-threads Fixed in 0.3.15-4.el8
- openblas-threads64 Fixed in 0.3.15-4.el8
- openblas-threads64_ Fixed in 0.3.15-4.el8
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- lapack Fixed in 3.10.0-2
- openblas Fixed in 0.3.18+ds-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- lapack Fixed in 3.10.0-2
- openblas Fixed in 0.3.18+ds-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- lapack Fixed in 3.10.0-2
- openblas Fixed in 0.3.18+ds-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- openblas No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- openblas No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- lapack No fix yet
- openblas No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- lapack No fix yet
- openblas No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.