#VU69295 Out-of-bounds read in lapack - CVE-2021-4048
Published: November 14, 2022
Vulnerability identifier: #VU69295
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-4048
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
lapack
lapack
Software vendor:
www.netlib.org
www.netlib.org
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the CLARRV, DLARRV, SLARRV, and ZLARRV functions in lapack. A remote attacker can pass specially crafted data to the application, trigger an out-of-bounds read error and crash the affected application.
Remediation
Install update from vendor's website.
External links
- https://github.com/JuliaLang/julia/issues/42415
- https://github.com/xianyi/OpenBLAS/commit/337b65133df174796794871b3988cd03426e6d41
- https://github.com/xianyi/OpenBLAS/commit/2be5ee3cca97a597f2ee2118808a2d5eacea050c
- https://github.com/xianyi/OpenBLAS/commit/ddb0ff5353637bb5f5ad060c9620e334c143e3d7
- https://github.com/Reference-LAPACK/lapack/commit/38f3eeee3108b18158409ca2a100e6fe03754781
- https://github.com/Reference-LAPACK/lapack/pull/625
- https://github.com/xianyi/OpenBLAS/commit/fe497efa0510466fd93578aaf9da1ad8ed4edbe7
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6QFEVOCUG2UXMVMFMTU4ONJVDEHY2LW2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DROZM4M2QRKSD6FBO4BHSV2QMIRJQPHT/