The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-0856 advisory.

    - [pinctrl] devicetree: Avoid taking direct reference to device name string (Aristeu Rozanski) [1922902]     {CVE-2020-0427}
    - [pinctrl] Delete an error message (Aristeu Rozanski) [1922902] {CVE-2020-0427}
    - [tty] vt: keyboard, reorder user buffer handling in vt_do_kdgkb_ioctl (Aristeu Rozanski) [1896775]     {CVE-2020-25656}
    - [tty] vt: keyboard, rename i to kb_func in vt_do_kdgkb_ioctl (Aristeu Rozanski) [1896775]     {CVE-2020-25656}
    - [tty] vt: keyboard, extend func_buf_lock to readers (Aristeu Rozanski) [1896775] {CVE-2020-25656}
    - [tty] vt: keyboard, simplify vt_kdgkbsent (Aristeu Rozanski) [1896775] {CVE-2020-25656}
    - [tty] keyboard, do not speculate on func_table index (Aristeu Rozanski) [1896775] {CVE-2020-25656}
    - [tty] vt: fix write/write race in ioctl(KDSKBSENT) handler (Aristeu Rozanski) [1896775] {CVE-2020-25656}
    - [gpu] drm/i915: Fix use-after-free when destroying GEM context (Dave Airlie) [1814731] {CVE-2020-7053}
    - [net] netfilter: ctnetlink: add a range check for l3/l4 protonum (Florian Westphal) [1888296]     {CVE-2020-25211}
    - [net] icmp: randomize the global rate limiter (Antoine Tenart) [1896515] {CVE-2020-25705}
    - [target] scsi: Fix XCOPY NAA identifier lookup (Maurizio Lombardi) [1900469] {CVE-2020-28374}
    - [netdrv] geneve: add transport ports in route lookup for geneve (Sabrina Dubroca) [1885144]     {CVE-2020-25645}
    - [kernel] perf/core: Fix race in the perf_mmap_close() function (Michael Petlan) [1869936]     {CVE-2020-14351}
    - [tty] Fix ->pgrp locking in tiocspgrp() (Chris von Recklinghausen) [1908193] {CVE-2020-29661}
    - [hid] Fix assumption that devices have inputs (Chris von Recklinghausen) [1821870] {CVE-2019-19532}
    - [hid] microsoft: the driver now neeed MEMLESS_FF infrastructure (Chris von Recklinghausen) [1821870]     {CVE-2019-19532}
    - [hid] microsoft: Add rumble support for Xbox One S controller (Chris von Recklinghausen) [1821870]     {CVE-2019-19532}
    - [hid] microsoft: Convert private data to be a proper struct (Chris von Recklinghausen) [1821870]     {CVE-2019-19532}
    - [hid] revert 'hid: microsoft: fix invalid rdesc for 3k kbd' (Chris von Recklinghausen) [1821870]     {CVE-2019-19532}
    - [hid] input: ignore System Control application usages if not System Controls (Chris von Recklinghausen)     [1821870] {CVE-2019-19532}
    - [hid] hid-microsoft: Do the check for the ms usage page per device (Chris von Recklinghausen) [1821870]     {CVE-2019-19532}

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

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

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0856 advisory.

  - In the Linux kernel before 5.3.9, there are multiple out-of-bounds write bugs that can be caused by a     malicious USB device in the Linux kernel HID drivers, aka CID-d9d4b1e46d95. This affects drivers/hid/hid-     axff.c, drivers/hid/hid-dr.c, drivers/hid/hid-emsff.c, drivers/hid/hid-gaff.c, drivers/hid/hid-holtekff.c,     drivers/hid/hid-lg2ff.c, drivers/hid/hid-lg3ff.c, drivers/hid/hid-lg4ff.c, drivers/hid/hid-lgff.c,     drivers/hid/hid-logitech-hidpp.c, drivers/hid/hid-microsoft.c, drivers/hid/hid-sony.c, drivers/hid/hid-     tmff.c, and drivers/hid/hid-zpff.c. (CVE-2019-19532)

  - In create_pinctrl of core.c, there is a possible out of bounds read due to a use after free. This could     lead to local information disclosure with no additional execution privileges needed. User interaction is     not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-140550171     (CVE-2020-0427)

  - A flaw was found in the Linux kernel. A use-after-free memory flaw was found in the perf subsystem     allowing a local attacker with permission to monitor perf events to corrupt memory and possibly escalate     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2020-14351)

  - In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could     overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in     ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.
    (CVE-2020-25211)

  - A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may     be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE     tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from     this vulnerability is to data confidentiality. (CVE-2020-25645)

  - A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was     using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of     bounds. The highest threat from this vulnerability is to data confidentiality. (CVE-2020-25656)

  - A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw     allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that     relies on UDP source port randomization are indirectly affected as well on the Linux Based Products     (RUGGEDCOM RM1224: All versions between v5.0 and v6.4, SCALANCE M-800: All versions between v5.0 and v6.4,     SCALANCE S615: All versions between v5.0 and v6.4, SCALANCE SC-600: All versions prior to v2.1.3, SCALANCE     W1750D: v8.3.0.1, v8.6.0, and v8.7.0, SIMATIC Cloud Connect 7: All versions, SIMATIC MV500 Family: All     versions, SIMATIC NET CP 1243-1 (incl. SIPLUS variants): Versions 3.1.39 and later, SIMATIC NET CP 1243-7     LTE EU: Version (CVE-2020-25705)

  - In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking     in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal     in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker     has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are     proxied via an attacker-selected backstore. (CVE-2020-28374)

  - A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13.
    drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b.
    (CVE-2020-29661)

  - In the Linux kernel 4.14 longterm through 4.14.165 and 4.19 longterm through 4.19.96 (and 5.x before 5.2),     there is a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c,     aka CID-7dc40713618c. This is related to i915_gem_context_destroy_ioctl in     drivers/gpu/drm/i915/i915_gem_context.c. (CVE-2020-7053)

  - A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux     kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by     exhausting available memory. The highest threat from this vulnerability is to system availability.
    (CVE-2021-20265)

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
134559	openSUSE Security Update : the Linux Kernel (openSUSE-2020-336)	Nessus	SuSE Local Security Checks	2020/3/13	2024/3/22	critical
147861	Oracle Linux 7 : kernel (ELSA-2021-0856)	Nessus	Oracle Linux Local Security Checks	2021/3/17	2026/2/9	high
147885	CentOS 7 : kernel (RHSA-2021:0856)	Nessus	CentOS Local Security Checks	2021/3/18	2024/10/9	high

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