The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-12826 advisory.

    [4.14.35-2047.529.3.2]
    - netfilter: xt_sctp: validate the flag_info count (Wander Lairson Costa)  [Orabug: 35824309]
    - netfilter: xt_u32: validate user space input (Wander Lairson Costa)  [Orabug: 35824309]
    - netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c (Kyle Zeng)     [Orabug: 35824309]  {CVE-2023-42753}

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

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

The version of kernel installed on the remote host is prior to 5.4.257-170.359. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2023-053 advisory.

    2024-07-03: CVE-2023-6176 was added to this advisory.

    2024-07-03: CVE-2023-51042 was added to this advisory.

    2024-06-06: CVE-2023-39189 was added to this advisory.

    2023-11-29: CVE-2023-42755 was added to this advisory.

    2023-10-31: CVE-2023-45871 was added to this advisory.

    2023-10-12: CVE-2023-39192 was added to this advisory.

    2023-10-12: CVE-2023-39193 was added to this advisory.

    2023-10-12: CVE-2023-39194 was added to this advisory.

    A flaw was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem). This issue     may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in     xfrm_update_ae_params(), leading to a possible kernel crash and denial of service. (CVE-2023-3772)

    nftables out-of-bounds read in nf_osf_match_one() (CVE-2023-39189)

    A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the     fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds     read by setting the size fields with a value beyond the array boundaries, leading to a crash or     information disclosure. (CVE-2023-39192)

    A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the     flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds     read, leading to a crash or information disclosure. (CVE-2023-39193)

    A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing     of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local     privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an     information disclosure. (CVE-2023-39194)

    The upstream commit describes this issue as follows:

    The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can lead to the use of wrong     `CIDR_POS(c)` for calculating array offsets, which can lead to integer underflow. As a result, it leads to     slab out-of-bound access. (CVE-2023-42753)

    A flaw was found in rsvp_change(). The root cause is an slab-out-of-bound access, but since the offset to     the original pointer is an `unsign int` fully controlled by users, the behavior is usually a wild pointer     access. (CVE-2023-42755)

    An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel     before 6.5.3. A buffer size may not be adequate for frames larger than the MTU. (CVE-2023-45871)

    A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local     privilege escalation.

    The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without     locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that     is being released by garbage collection, resulting in use-after-free.

    We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. (CVE-2023-4622)

    A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control)     component can be exploited to achieve local privilege escalation.

    If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing     curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in     update_vf(). This leaves a dangling pointer that can cause a use-after-free.

    We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f. (CVE-2023-4623)

    A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to     achieve local privilege escalation.

    When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free     in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in     agg_dequeue().

    We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8. (CVE-2023-4921)

    In the Linux kernel before 6.4.12, amdgpu_cs_wait_all_fences in drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c has     a fence use-after-free. (CVE-2023-51042)

    A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm     scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific     socket configuration, which could allow a local user to crash the system or escalate their privileges on     the system. (CVE-2023-6176)

Tenable has extracted the preceding description block directly from the tested product 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 a vulnerability as referenced in the RHSA-2024:0347 advisory.

  - An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro     could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to     arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash     the system or potentially escalate their privileges on the system. (CVE-2023-42753)

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

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1249-1 advisory.

  - An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro     could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to     arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash     the system or potentially escalate their privileges on the system. (CVE-2023-42753)

  - When a router encounters an IPv6 packet too big to transmit to the next-hop, it returns an ICMP6 Packet     Too Big (PTB) message to the sender. The sender caches this updated Maximum Transmission Unit (MTU) so it     knows not to exceed this value when subsequently routing to the same host. (CVE-2023-52340)

  - An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in     the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy     length, leading to a denial of service. (CVE-2024-0565)

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

The remote Oracle Linux 8 / 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-12824 advisory.

    [5.15.0-105.125.6.2.2]
    - netfilter: nfnetlink_osf: avoid OOB read (Wander Lairson Costa)  [Orabug: 35824297]
    - netfilter: nftables: exthdr: fix 4-byte stack OOB write (Florian Westphal)  [Orabug: 35824297]
    - netfilter: xt_sctp: validate the flag_info count (Wander Lairson Costa)  [Orabug: 35824297]
    - netfilter: xt_u32: validate user space input (Wander Lairson Costa)  [Orabug: 35824297]
    - netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c (Kyle Zeng)     [Orabug: 35824297]  {CVE-2023-42753}

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

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

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:0346 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * gfs2: kernel BUG at fs/gfs2/lops.c:135 (BZ#2196280)

    * ax88179_178a 2-6:1.0 (unregistered net_device) (uninitialized): Failed to read reg index 0x0006: -71     (RHEL-6302)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0563 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe     (CVE-2023-2163)

    * kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags (CVE-2023-3812)

    * kernel: use after free in unix_stream_sendpage (CVE-2023-4622)

    * kernel: net/sched: sch_hfsc UAF (CVE-2023-4623)

    * kernel: use-after-free in sch_qfq network scheduler (CVE-2023-4921)

    * kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753)

    * kernel: IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)

    * hw: Intel: Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)

    * kernel: UAF during login when accessing the shost ipaddress (CVE-2023-2162)

    * kernel: fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment     (CVE-2023-38409)

    * kernel: use-after-free in smb2_is_status_io_timeout() (CVE-2023-1192)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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 Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12875 advisory.

    - netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c (Kyle Zeng)     [Orabug: 35824288]  {CVE-2023-42753}
    - rds: Fix lack of reentrancy for connection reset with dst addr zero (Hakon Bugge)  [Orabug: 35819110]     {CVE-2023-22024}

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 Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-0461 advisory.

    - nfp: fix use-after-free in area_cache_get() (Ricardo Robaina) [RHEL-19456 RHEL-19536 RHEL-6566     RHEL-7241] {CVE-2022-3545}
    - fbcon: set_con2fb_map needs to set con2fb_map! (Jocelyn Falempe) [RHEL-1106 RHEL-1109 RHEL-12930     RHEL-13899] {CVE-2023-38409}
    - fbcon: Fix error paths in set_con2fb_map (Jocelyn Falempe) [RHEL-1106 RHEL-1109 RHEL-12930 RHEL-13899]     {CVE-2023-38409}
    - net: tun: fix bugs for oversize packet when napi frags enabled (Ricardo Robaina) [RHEL-12495 RHEL-12496     RHEL-7186 RHEL-7264] {CVE-2023-3812}
    - netfilter: nf_tables: skip immediate deactivate in _PREPARE_ERROR (Florian Westphal) [RHEL-10536     RHEL-10538 RHEL-10537 RHEL-10539] {CVE-2023-4015}
    - dpll: sanitize possible null pointer dereference in dpll_pin_parent_pin_set() (Michal Schmidt)     [RHEL-19677 RHEL-19095] {CVE-2023-6679}
    - dpll: Fix potential msg memleak when genlmsg_put_reply failed (Michal Schmidt) [RHEL-19677 RHEL-19095]     {CVE-2023-6679}
    - Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_ready_cb (Bastien Nocera) [RHEL-19003 RHEL-2717]     {CVE-2023-40283}

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 Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12874 advisory.

    - x86: KVM: SVM: always update the x2avic msr interception (Maxim Levitsky)  [Orabug: 35857366]     {CVE-2023-5090}
    - netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c (Kyle Zeng)     [Orabug: 35824287]  {CVE-2023-42753}
    - x86/microcode: Stop reprobing mitigations after late microcode load (Boris Ostrovsky)  [Orabug:
    35818857]  {CVE-2023-20569}
    - objtool/x86: Fix SRSO mess (Peter Zijlstra)  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/srso: Correct the mitigation status when SMT is disabled (Borislav Petkov (AMD))  [Orabug: 35818857]     {CVE-2023-20569}
    - objtool/x86: Fixup frame-pointer vs rethunk (Peter Zijlstra)  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/srso: Disable the mitigation on unaffected configurations (Borislav Petkov (AMD))  [Orabug:
    35818857]  {CVE-2023-20569}
    - x86/retpoline: Don't clobber RFLAGS during srso_safe_ret() (Sean Christopherson)  [Orabug: 35818857]     {CVE-2023-20569}
    - x86/srso: Explain the untraining sequences a bit more (Borislav Petkov (AMD))  [Orabug: 35818857]     {CVE-2023-20569}
    - x86/cpu: Cleanup the untrain mess (Peter Zijlstra)  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/cpu: Rename srso_(.*)_alias to srso_alias_\1 (Peter Zijlstra)  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/cpu: Rename original retbleed methods (Peter Zijlstra)  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/cpu: Clean up SRSO return thunk mess (Peter Zijlstra)  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/alternative: Make custom return thunk unconditional (Peter Zijlstra)  [Orabug: 35818857]     {CVE-2023-20569}
    - x86/cpu: Fix up srso_safe_ret() and __x86_return_thunk() (Peter Zijlstra)  [Orabug: 35818857]     {CVE-2023-20569}
    - x86/cpu: Fix __x86_return_thunk symbol type (Peter Zijlstra)  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/srso: Fix build breakage with the LLVM linker (Nick Desaulniers)  [Orabug: 35818857]     {CVE-2023-20569}
    - x86/srso: Tie SBPB bit setting to microcode patch detection (Borislav Petkov (AMD))  [Orabug: 35818857]     {CVE-2023-20569}
    - x86/srso: Fix return thunks in generated code (Josh Poimboeuf)  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/srso: Add IBPB on VMEXIT (Borislav Petkov (AMD))  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/srso: Add IBPB (Borislav Petkov (AMD))  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/srso: Add SRSO_NO support (Borislav Petkov (AMD))  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/srso: Add IBPB_BRTYPE support (Borislav Petkov (AMD))  [Orabug: 35818857]  {CVE-2023-20569}
    - x86/srso: Add a Speculative RAS Overflow mitigation (Borislav Petkov (AMD))  [Orabug: 35818857]     {CVE-2023-20569}
    - rds: Fix lack of reentrancy for connection reset with dst addr zero (Hakon Bugge)  [Orabug: 35819522]     {CVE-2023-22024}
    - x86/CPU/AMD: Fix the DIV(0) initial fix attempt (Borislav Petkov (AMD))  [Orabug: 35776936]     {CVE-2023-20588}
    - x86/CPU/AMD: Do not leak quotient data after a division by 0 (Borislav Petkov (AMD))  [Orabug: 35776936]     {CVE-2023-20588}

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.

ID	Name	Product	Family	Published	Updated	Severity
181813	Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2023-12826)	Nessus	Oracle Linux Local Security Checks	9/22/2023	11/2/2024	high
182660	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2023-053)	Nessus	Amazon Linux Local Security Checks	10/6/2023	7/5/2024	high
189510	CentOS 7 : kernel-rt (RHSA-2024:0347)	Nessus	CentOS Local Security Checks	1/25/2024	1/25/2024	high
193250	SUSE SLES15 Security Update : kernel (Live Patch 35 for SLE 15 SP2) (SUSE-SU-2024:1249-1)	Nessus	SuSE Local Security Checks	4/12/2024	4/12/2024	high
181815	Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2023-12824)	Nessus	Oracle Linux Local Security Checks	9/22/2023	11/1/2024	high
189524	RHEL 7 : kernel (RHSA-2024:0346)	Nessus	Red Hat Local Security Checks	1/25/2024	11/7/2024	high
189802	RHEL 8 : kernel-rt (RHSA-2024:0563)	Nessus	Red Hat Local Security Checks	1/30/2024	11/7/2024	high
183057	Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2023-12875)	Nessus	Oracle Linux Local Security Checks	10/13/2023	11/2/2024	high
191728	Oracle Linux 9 : kernel (ELSA-2024-0461)	Nessus	Oracle Linux Local Security Checks	3/7/2024	11/2/2024	high
183034	Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2023-12874)	Nessus	Oracle Linux Local Security Checks	10/13/2023	10/22/2024	high

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