SUSE CVE-2021-46952

In the Linux kernel, the following vulnerability has been resolved: NFS: fscontext: validate UDP retrans to prevent shift out-of-bounds Fix shift out-of-bounds in xprtcalcmajortimeo. This is caused by a garbage timeout retrans mount option being passed to nfs mount, in this case from syzkaller. I...

CVE-2021-47036

An inner protocol corruption flaw was found in the Linux kernel...

CentOS 9 : c-ares-1.19.1-1.el9

The remote CentOS Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the c-ares-1.19.1-1.el9 build changelog. - AutoTools does not set CARESRANDOMFILE during cross compilation rhel-9 CVE-2023-31124 - Buffer Underwrite in aresinetnetpton rhel-9...

CVE-2021-47036

In the Linux kernel, the following vulnerability has been resolved: udp: skip L4 aggregation for UDP tunnel packets If NETIFFGROFRAGLIST or NETIFFGROUDPFWD are enabled, and there are UDP tunnels available in the system, udpgroreceive could end-up doing L4 aggregation either SKBGSOUDPL4 or...

DEBIAN-CVE-2021-47036

In the Linux kernel, the following vulnerability has been resolved: udp: skip L4 aggregation for UDP tunnel packets If NETIFFGROFRAGLIST or NETIFFGROUDPFWD are enabled, and there are UDP tunnels available in the system, udpgroreceive could end-up doing L4 aggregation either SKBGSOUDPL4 or...

CVE-2021-47036

In the Linux kernel, the following vulnerability has been resolved: udp: skip L4 aggregation for UDP tunnel packets If NETIFFGROFRAGLIST or NETIFFGROUDPFWD are enabled, and there are UDP tunnels available in the system, udpgroreceive could end-up doing L4 aggregation either SKBGSOUDPL4 or...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: udp: skip L4 aggregation for UDP tunnel packets If NETIFFGROFRAGLIST or NETIFFGROUDPFWD are enabled, and there are UDP tunnels available in the system, udpgroreceive could end-up doing L4 aggregation either SKBGSOUDPL4 or...

CVE-2021-47036

In the Linux kernel, the following vulnerability has been resolved: udp: skip L4 aggregation for UDP tunnel packets If NETIFFGROFRAGLIST or NETIFFGROUDPFWD are enabled, and there are UDP tunnels available in the system, udpgroreceive could end-up doing L4 aggregation either SKBGSOUDPL4 or...

CVE-2021-47036 udp: skip L4 aggregation for UDP tunnel packets

In the Linux kernel, the following vulnerability has been resolved: udp: skip L4 aggregation for UDP tunnel packets If NETIFFGROFRAGLIST or NETIFFGROUDPFWD are enabled, and there are UDP tunnels available in the system, udpgroreceive could end-up doing L4 aggregation either SKBGSOUDPL4 or...

CVE-2021-47036

In the Linux kernel, the following vulnerability has been resolved: udp: skip L4 aggregation for UDP tunnel packets If NETIFFGROFRAGLIST or NETIFFGROUDPFWD are enabled, and there are UDP tunnels available in the system, udpgroreceive could end-up doing L4 aggregation either SKBGSOUDPL4 or...

CVE-2021-47036 udp: skip L4 aggregation for UDP tunnel packets

In the Linux kernel, the following vulnerability has been resolved: udp: skip L4 aggregation for UDP tunnel packets If NETIFFGROFRAGLIST or NETIFFGROUDPFWD are enabled, and there are UDP tunnels available in the system, udpgroreceive could end-up doing L4 aggregation either SKBGSOUDPL4 or...

CVE-2021-47036

CVE-2021-47036 affects the Linux kernel UDP GRO offload path. When NETIF_F_GRO_FRAGLIST or NETIF_F_GRO_UDP_FWD are enabled and UDP tunnels exist, udp_gro_receive() could perform L4 GRO aggregation at the outer UDP tunnel level, causing inner headers (e.g., VXLAN) to be corrupted and potentially m...

CVE-2021-46952

In the Linux kernel, the following vulnerability has been resolved: NFS: fscontext: validate UDP retrans to prevent shift out-of-bounds Fix shift out-of-bounds in xprtcalcmajortimeo. This is caused by a garbage timeout retrans mount option being passed to nfs mount, in this case from syzkaller. I...

Linux kernel security vulnerabilities

The Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from the fact that if NETIFFGROFRAGLIST or NETIFFGROUDPFWD is enabled and there are available UDP tunnels in the system, udpgroreceive m...

CVE-2021-46952

In the Linux kernel, the following vulnerability has been resolved: NFS: fscontext: validate UDP retrans to prevent shift out-of-bounds Fix shift out-of-bounds in xprtcalcmajortimeo. This is caused by a garbage timeout retrans mount option being passed to nfs mount, in this case from syzkaller. I...

CVE-2021-46952

In the Linux kernel, the following vulnerability has been resolved: NFS: fscontext: validate UDP retrans to prevent shift out-of-bounds Fix shift out-of-bounds in xprtcalcmajortimeo. This is caused by a garbage timeout retrans mount option being passed to nfs mount, in this case from syzkaller. I...

CVE-2021-46952

In the Linux kernel, the following vulnerability has been resolved: NFS: fscontext: validate UDP retrans to prevent shift out-of-bounds Fix shift out-of-bounds in xprtcalcmajortimeo. This is caused by a garbage timeout retrans mount option being passed to nfs mount, in this case from syzkaller. I...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: NFS: fscontext: validate UDP retrans to prevent shift out-of-bounds Fix shift out-of-bounds in xprtcalcmajortimeo. This is caused by a garbage timeout retrans mount option being passed to nfs mount, in this case from syzkaller. I...

CVE-2021-46952 NFS: fs_context: validate UDP retrans to prevent shift out-of-bounds

In the Linux kernel, the following vulnerability has been resolved: NFS: fscontext: validate UDP retrans to prevent shift out-of-bounds Fix shift out-of-bounds in xprtcalcmajortimeo. This is caused by a garbage timeout retrans mount option being passed to nfs mount, in this case from syzkaller. I...

CVE-2021-46952

Summary (CVE-2021-46952): In the Linux kernel, NFS with UDP transport was vulnerable to a shift-out-of-bounds due to a garbage UDP retrans timeout being passed to xprt_calc_majortimeo. If retrans is >= 64, the mount fails with an error, preventing exploitation. The fix is a patch to validate U...