CVE-2021-4048 · cross-distro fix matrix

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 passed to these functions could cause an application using lapack to crash or possibly disclose portions

Affects 2 Linux releases across 4 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-4048 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

lapack→ fixed in3.10.0-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lapack
```
openblas→ fixed in0.3.18+ds-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openblas
```

Debian trixie

Source: Debian Security Tracker

lapack→ fixed in3.10.0-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lapack
```
openblas→ fixed in0.3.18+ds-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openblas
```

Are YOU affected by CVE-2021-4048?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

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