A vulnerability was found in marvell wifi chip driver in Linux kernel. There is a heap-based buffer overflow in lbs_ibss_join_existing function in drivers/net/wireless/marvell/libertas/cfg.c allows remote attackers to cause a denial of service(system crash) or possibly execute arbitrary code. When STA connects to AP, lbs_ibss_join_existing function will be called for STA.

References

• https://nvd.nist.gov/vuln/detail/CVE-2019-14896
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14896
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D4ISVNIC44SOGXTUBCIZFSUNQJ5LRKNZ/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MN6MLCN7G7VFTSXSZYXKXEFCUMFBUAXQ/
• https://security.netapp.com/advisory/ntap-20200103-0001/
• https://usn.ubuntu.com/4225-1/
• https://usn.ubuntu.com/4226-1/
• https://usn.ubuntu.com/4227-1/
• https://usn.ubuntu.com/4227-2/
• https://usn.ubuntu.com/4228-1/
• https://usn.ubuntu.com/4228-2/
• http://packetstormsecurity.com/files/155879/Kernel-Live-Patch-Security-Notice-LSN-0061-1.html
• https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
• https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
• https://usn.ubuntu.com/4225-2/
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
• http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.html
• https://access.redhat.com/errata/RHSA-2020:3548
• https://access.redhat.com/security/cve/CVE-2019-14896
• https://bugzilla.redhat.com/show_bug.cgi?id=1774875
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D4ISVNIC44SOGXTUBCIZFSUNQJ5LRKNZ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MN6MLCN7G7VFTSXSZYXKXEFCUMFBUAXQ/