Out-of-bounds Read in Julialang Julia
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 of its memory.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.028 (86.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Julialang Julia — versions 1.7.0
- Lapack Project
- Openblas Project
- Fedoraproject Fedora — versions 34, 35
- Red Hat Ceph Storage — versions 2.0, 3.0, 4.0
- Red Hat Enterprise Linux — versions 8.0
- Red Hat Openshift Container Storage — versions 4.0
- Red Hat Openshift Data Foundation — versions 4.0
- Lapack — versions lapack through version 3.10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/Reference-LAPACK/lapack/pull/625 (Patch, Third Party Advisory, Issue Tracking)
- github.com/Reference-LAPACK/lapack/commit/38f3eeee3108b18158409ca2a100e6fe03754… (Patch, Third Party Advisory)
- github.com/JuliaLang/julia/issues/42415 (Patch, Third Party Advisory, Issue Tracking)
- github.com/xianyi/OpenBLAS/commit/337b65133df174796794871b3988cd03426e6d41 (Patch, Third Party Advisory)
- github.com/xianyi/OpenBLAS/commit/2be5ee3cca97a597f2ee2118808a2d5eacea050c (Patch, Third Party Advisory)
- github.com/xianyi/OpenBLAS/commit/fe497efa0510466fd93578aaf9da1ad8ed4edbe7 (Patch, Third Party Advisory)
- github.com/xianyi/OpenBLAS/commit/ddb0ff5353637bb5f5ad060c9620e334c143e3d7 (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-4048?
- CVE-2021-4048 is a critical-severity vulnerability in Julialang Julia, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2021-12-08.
- How severe is CVE-2021-4048?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2021-4048 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.