Updated kernel packages fix security vulnerabilities

This kernel update is based on upstream 5.10.78 and fixes at least the following security issues: A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability CVE-2021-3760. A flaw in the SCTP stack where a blind attacker may be able ...

CVE-2021-43389

An improper validation of an array index and out of bounds memory read in the Linux kernel's Integrated Services Digital Network ISDN functionality was found in the way users call ioctl CMTPCONNADD. A local user could use this flaw to crash the system or starve the resources causing denial of...

CVE-2021-3896

DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2021-43389. Reason: This candidate is a reservation duplicate of CVE-2021-43389. Notes: All CVE users should reference CVE-2021-43389 instead of this candidate. All references and descriptions in this candidate have been removed to prevent...

UBUNTU-CVE-2021-3896

Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2021-43389. Reason: This candidate is a reservation duplicate of CVE-2021-43389. Notes: All CVE users should reference CVE-2021-43389 instead of this candidate. All references and descriptions in this candidate have been removed t...

CVE-2021-3896

CVE-2021-43389 is a Linux kernel vulnerability tracked across multiple advisories. Connected documents confirm an array-index-out-of-bounds flaw in the ISDN CAPI in kcapi.c (detach_capi_ctr) within the kernel’s CAPI/ISDN stack, leading to an out-of-bounds read and potential object type confusion....

CVE-2021-43389

CVE-2021-43389 affects the Linux kernel (pre-5.14.15) with an array-index-out-of-bounds flaw in the ISDN CAPI detach_capi_ctr function (kcapi.c). Multiple sources describe this as a local privilege‑escalation/DoS risk, where a privileged attacker could cause memory corruption, DoS, or potentially...