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

  - A new software page cache side channel attack scenario     was discovered in operating systems that implement the     very common 'page cache' caching mechanism. A malicious     user/process could use 'in memory' page-cache knowledge     to infer access timings to shared memory and gain     knowledge which can be used to reduce effectiveness of     cryptographic strength by monitoring algorithmic     behavior, infer access patterns of memory to determine     code paths taken, and exfiltrate data to a blinded     attacker through page-granularity access times as a     side-channel.(CVE-2019-5489)

  - It was found that the Linux kernel can hit a BUG_ON()     statement in the __xfs_get_blocks() in the     fs/xfs/xfs_aops.c because of a race condition between     direct and memory-mapped I/O associated with a hole in     a file that is handled with BUG_ON() instead of an I/O     failure. This allows a local unprivileged attacker to     cause a system crash and a denial of     service.(CVE-2016-10741)

  - An issue was discovered in the proc_pid_stack function     in fs/proc/base.c in the Linux kernel. An attacker with     a local account can trick the stack unwinder code to     leak stack contents to userspace. The fix allows only     root to inspect the kernel stack of an arbitrary     task.(CVE-2018-17972)

  - A security flaw was found in the Linux kernel in a way     that the cleancache subsystem clears an inode after the     final file truncation (removal). The new file created     with the same inode may contain leftover pages from     cleancache and the old file data instead of the new     one.(CVE-2018-16862)

  - A use-after-free flaw can occur in the Linux kernel due     to a race condition between packet_do_bind() and     packet_notifier() functions called for an AF_PACKET     socket. An unprivileged, local user could use this flaw     to induce kernel memory corruption on the system,     leading to an unresponsive system or to a crash. Due to     the nature of the flaw, privilege escalation cannot be     fully ruled out.(CVE-2018-18559)

  - A flaw was found In the Linux kernel, through version     4.19.6, where a local user could exploit a     use-after-free in the ALSA driver by supplying a     malicious USB Sound device (with zero interfaces) that     is mishandled in usb_audio_probe in sound/usb/card.c.
    An attacker could corrupt memory and possibly escalate     privileges if the attacker is able to have physical     access to the system.(CVE-2018-19824)

  - A flaw was found in the Linux kernel's ext4 filesystem.
    A local user can cause a use-after-free in     ext4_xattr_set_entry function and a denial of service     or unspecified other impact may occur by renaming a     file in a crafted ext4 filesystem     image.(CVE-2018-10879)

  - A flaw was found in the Linux kernel's ext4 filesystem.
    A local user can cause an out-of-bound write in     jbd2_journal_dirty_metadata(), a denial of service, and     a system crash by mounting and operating on a crafted     ext4 filesystem image.(CVE-2018-10883)

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.

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

  - The xfs_bmap_extents_to_btree function in     fs/xfs/libxfs/xfs_bmap.c in the Linux kernel through     4.16.3 allows local users to cause a denial of service     (xfs_bmapi_write NULL pointer dereference) via a     crafted xfs image.(CVE-2018-10323)

  - A flaw was found in the Linux kernel's ext4 filesystem.
    A local user can cause a use-after-free in     ext4_xattr_set_entry function and a denial of service     or unspecified other impact may occur by renaming a     file in a crafted ext4 filesystem     image.(CVE-2018-10879)

  - A flaw was found in the Linux kernel's ext4 filesystem.
    A local user can cause an out-of-bound write in     jbd2_journal_dirty_metadata(), a denial of service, and     a system crash by mounting and operating on a crafted     ext4 filesystem image. (CVE-2018-10883)

  - The Linux kernel was found vulnerable to an integer     overflow in the     drivers/video/fbdev/uvesafb.c:uvesafb_setcmap()     function. The vulnerability could result in local     attackers being able to crash the kernel or potentially     elevate privileges.(CVE-2018-13406)

  - It was found that paravirt_patch_call/jump() functions     in the arch/x86/kernel/paravirt.c in the Linux kernel     mishandles certain indirect calls, which makes it     easier for attackers to conduct Spectre-v2 attacks     against paravirtualized guests. (CVE-2018-15594)

  - A flaw was found in the Linux kernel's NFS     implementation. An attacker, who is able to mount an     exported NFS filesystem, is able to trigger a null     pointer dereference by using an invalid NFS sequence.
    This can panic the machine and deny access to the NFS     server. Any outstanding disk writes to the NFS server     will be lost. (CVE-2018-16871)

  - A vulnerability was found in the Linux kernelaEURtms     floppy disk driver implementation. A local attacker     with access to the floppy device could call     set_geometry in drivers/block/floppy.c, which does not     validate the sect and head fields, causing an integer     overflow and out-of-bounds read. This flaw may crash     the system or allow an attacker to gather information     causing subsequent successful attacks. (CVE-2019-14283)

  - A vulnerability was found in the Linux kernelaEURtms     floppy disk driver implementation. A local attacker     with access to the floppy disk device file (/dev/fd0     through to /dev/fdN) can create a situation that causes     the kernel to divide by zero. This requires two     consecutive ioctl calls to be issued. The first ioctl     call sets the sector and rate values, and the second     ioctl is the call to format the floppy disk to the     appropriate values. This flaw can cause the system to     divide by zero and panic the host. No media (floppy) is     required to be inserted for this attack to work     properly.(CVE-2019-14284)

  - In the Linux kernel through 5.2.1 on the powerpc     platform, when hardware transactional memory is     disabled, a local user can cause a denial of service     (TM Bad Thing exception and system crash) via a     sigreturn() system call that sends a crafted signal     frame. This affects arch/powerpc/kernel/signal_32.c and     arch/powerpc/kernel/signal_64.c.(CVE-2019-13648)

  - In parse_hid_report_descriptor in     drivers/input/tablet/gtco.c in the Linux kernel through     5.2.1, a malicious USB device can send an HID report     that triggers an out-of-bounds write during generation     of debugging messages. (CVE-2019-13631)

  - An issue was discovered in drm_load_edid_firmware in     drivers/gpu/drm/drm_edid_load.c in the Linux kernel     through 5.1.5. There is an unchecked kstrdup of fwstr,     which might allow an attacker to cause a denial of     service (NULL pointer dereference and system crash).
    NOTE: The vendor disputes this issues as not being a     vulnerability because kstrdup() returning NULL is     handled sufficiently and there is no chance for a NULL     pointer dereference. (CVE-2019-12382)

  - An issue was discovered in dlpar_parse_cc_property in     arch/powerpc/platforms/pseries/dlpar.c in the Linux     kernel through 5.1.6. There is an unchecked kstrdup of     prop-i1/4zname, which might allow an attacker to cause a     denial of service (NULL pointer dereference and system     crash). (CVE-2019-12614)

  - An issue was discovered in the Linux kernel before     4.18.7. In block/blk-core.c, there is an
    __blk_drain_queue() use-after-free because a certain     error case is mishandled.(CVE-2018-20856)

  - An issue was discovered in ip_ra_control in     net/ipv4/ip_sockglue.c in the Linux kernel through     5.1.5. There is an unchecked kmalloc of new_ra, which     might allow an attacker to cause a denial of service     (NULL pointer dereference and system crash). NOTE: this     is disputed because new_ra is never used if it is     NULL.(CVE-2019-12381)

  - An issue was discovered in ip6_ra_control in     net/ipv6/ipv6_sockglue.c in the Linux kernel through     5.1.5. There is an unchecked kmalloc of new_ra, which     might allow an attacker to cause a denial of service     (NULL pointer dereference and system crash). NOTE: This     has been disputed as not an issue.(CVE-2019-12378)

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.

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3753-1 advisory.

    It was discovered that the generic SCSI driver in the Linux kernel did not properly enforce permissions on     kernel memory access. A local attacker could use this to expose sensitive information or possibly elevate     privileges. (CVE-2017-13168)

    Wen Xu discovered that a use-after-free vulnerability existed in the ext4 filesystem implementation in the     Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could     cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10876,     CVE-2018-10879)

    Wen Xu discovered that a buffer overflow existed in the ext4 filesystem implementation in the Linux     kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a     denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10877)

    Wen Xu discovered that an out-of-bounds write vulnerability existed in the ext4 filesystem implementation     in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted,     could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10878,     CVE-2018-10882)

    Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly keep meta-     data information consistent in some situations. An attacker could use this to construct a malicious ext4     image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10881)

    Shankara Pailoor discovered that the JFS filesystem implementation in the Linux kernel contained a buffer     overflow when handling extended attributes. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2018-12233)

    Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly handle an     error condition with a corrupted xfs image. An attacker could use this to construct a malicious xfs image     that, when mounted, could cause a denial of service (system crash). (CVE-2018-13094)

    It was discovered that the Linux kernel did not properly handle setgid file creation when performed by a     non-member of the group. A local attacker could use this to gain elevated privileges. (CVE-2018-13405)

    Silvio Cesare discovered that the generic VESA frame buffer driver in the Linux kernel contained an     integer overflow. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2018-13406)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
124430	EulerOS 2.0 SP3 : kernel (EulerOS-SA-2019-1303)	Nessus	Huawei Local Security Checks	2019/5/1	2024/5/30	high
128842	EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-1919)	Nessus	Huawei Local Security Checks	2019/9/16	2024/4/25	high
112111	Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3753-1)	Nessus	Ubuntu Local Security Checks	2018/8/24	2024/8/27	high

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