According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An out-of-bounds (OOB) memory access flaw was found in     x25_bind in net/x25/af_x25.c in the Linux kernel. A     bounds check failure allows a local attacker with a     user account on the system to gain access to     out-of-bounds memory, leading to a system crash or a     leak of internal kernel information. The highest threat     from this vulnerability is to confidentiality,     integrity, as well as system     availability.(CVE-2020-35519)

  - A flaw was found in the Nosy driver in the Linux     kernel. This issue allows a device to be inserted twice     into a doubly-linked list, leading to a use-after-free     when one of these devices is removed. The highest     threat from this vulnerability is to confidentiality,     integrity, as well as system     availability.(CVE-2021-3483)

  - An issue was discovered in the Linux kernel before     5.11.8. kernel/bpf/verifier.c performs undesirable     out-of-bounds speculation on pointer arithmetic,     leading to side-channel attacks that defeat Spectre     mitigations and obtain sensitive information from     kernel memory, aka CID-f232326f6966. This affects     pointer types that do not define a     ptr_limit.(CVE-2020-27170)

  - A race condition was discovered in get_old_root in     fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It     allows attackers to cause a denial of service (BUG)     because of a lack of locking on an extent buffer before     a cloning operation, aka     CID-dbcc7d57bffc.(CVE-2021-28964)

  - An issue was discovered in the Linux kernel before     5.11.8. kernel/bpf/verifier.c has an off-by-one error     (with a resultant integer underflow) affecting     out-of-bounds speculation on pointer arithmetic,     leading to side-channel attacks that defeat Spectre     mitigations and obtain sensitive information from     kernel memory, aka CID-10d2bb2e6b1d.(CVE-2020-27171)

  - rtw_wx_set_scan in     drivers/staging/rtl8188eu/os_dep/ioctl_linux.c in the     Linux kernel through 5.11.6 allows writing beyond the     end of the ->ssid[] array. NOTE: from the perspective     of kernel.org releases, CVE IDs are not normally used     for drivers/staging/* (unfinished work) however, system     integrators may have situations in which a     drivers/staging issue is relevant to their own customer     base.(CVE-2021-28660)

  - An issue was discovered in the Linux kernel before     5.11.3 when a webcam device exists. video_usercopy in     drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak     for large arguments, aka     CID-fb18802a338b.(CVE-2021-30002)

  - An issue was discovered in the Linux kernel before     5.11.11. The netfilter subsystem allows attackers to     cause a denial of service (panic) because     net/netfilter/x_tables.c and     include/linux/netfilter/x_tables.h lack a full memory     barrier upon the assignment of a new table value, aka     CID-175e476b8cdf.(CVE-2021-29650)

  - BPF JIT compilers in the Linux kernel through 5.11.12     have incorrect computation of branch displacements,     allowing them to execute arbitrary code within the     kernel context. This affects     arch/x86/net/bpf_jit_comp.c and     arch/x86/net/bpf_jit_comp32.c.(CVE-2021-29154)

  - The fix for XSA-365 includes initialization of pointers     such that subsequent cleanup code wouldn't use     uninitialized or stale values. This initialization went     too far and may under certain conditions also overwrite     pointers which are in need of cleaning up. The lack of     cleanup would result in leaking persistent grants. The     leak in turn would prevent fully cleaning up after a     respective guest has died, leaving around zombie     domains. All Linux versions having the fix for XSA-365     applied are vulnerable. XSA-365 was classified to     affect versions back to at least 3.11.(CVE-2021-28688)

  - In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux     kernel through 5.11.8, the RPA PCI Hotplug driver has a     user-tolerable buffer overflow when writing a new     device name to the driver from userspace, allowing     userspace to write data to the kernel stack frame     directly. This occurs because add_slot_store and     remove_slot_store mishandle drc_name '\0' termination,     aka CID-cc7a0bb058b8.(CVE-2021-28972)

  - An issue was discovered in the Linux kernel before     5.11.11. qrtr_recvmsg in net/qrtr/qrtr.c allows     attackers to obtain sensitive information from kernel     memory because of a partially uninitialized data     structure, aka CID-50535249f624.(CVE-2021-29647)

  - There is a flaw reported in     drivers/gpu/drm/nouveau/nouveau_sgdma.c in     nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The     issue results from the lack of validating the existence     of an object prior to performing operations on the     object. An attacker with a local account with a root     privilege, can leverage this vulnerability to escalate     privileges and execute code in the context of the     kernel.(CVE-2021-20292)

  - An issue was discovered in the Linux kernel before     5.11.7. usbip_sockfd_store in     drivers/usb/usbip/stub_dev.c allows attackers to cause     a denial of service (GPF) because the stub-up sequence     has race conditions during an update of the local and     shared status, aka CID-9380afd6df70.(CVE-2021-29265)

  - An issue was discovered in the Linux kernel through     5.11.10. drivers/net/ethernet/freescale/gianfar.c in     the Freescale Gianfar Ethernet driver allows attackers     to cause a system crash because a negative fragment     size is calculated in situations involving an rx queue     overrun when jumbo packets are used and NAPI is     enabled, aka CID-d8861bab48b6.(CVE-2021-29264)

  - An issue was discovered in the FUSE filesystem     implementation in the Linux kernel before 5.10.6, aka     CID-5d069dbe8aaf. fuse_do_getattr() calls     make_bad_inode() in inappropriate situations, causing a     system crash. NOTE: the original fix for this     vulnerability was incomplete, and its incompleteness is     tracked as CVE-2021-28950.(CVE-2020-36322)

  - A race condition was found in the Linux kernel in     sctp_destroy_sock. If sctp_destroy_sock is called     without sock_net(sk)->sctp.addr_wq_lock held and     sp->do_auto_asconf is true, then an element is removed     from the auto_asconf_splist without any proper locking.
    This can lead to kernel privilege escalation from the     context of a network service or from an unprivileged     process if certain conditions are met.(CVE-2021-23133)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Detections

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EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-2062)

high Nessus Plugin ID 151240

Version 1.5

Version 1.4

Version 1.5 Dec 11, 2023, 2:00 PM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:POC/RL:OF/RC:C". "CVSSv3 temporal vector" set to "CVSS:3.0/E:P/RL:O/RC:C") Exploit attributes ("Exploit available" set to "True". "Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202312111400
Version 1.4 Mar 23, 2023, 8:46 PM Plugin requirements Plugin Feed: 202303232046