SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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.

CRITICAL 9.1EPSS 2.64%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.64%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS
2.64% probability · 85th percentile
CISA KEV
Not listed
Weakness
CWE-125
Affected
lapack project/lapack · openblas project/openblas · julialang/julia · redhat/ceph storage · redhat/openshift container storage · redhat/openshift data foundation · redhat/enterprise linux · fedoraproject/fedora
Source
secalert@redhat.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.