Debian DLA-3131-1 : linux - LTS security update

high Nessus Plugin ID 165623


The remote Debian host is missing one or more security-related updates.


The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3131 advisory.

- When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds. (CVE-2021-33655)

- When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.

- A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures.
Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. (CVE-2021-4159)

- An out-of-bounds read flaw was found in the Linux kernel's TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory. (CVE-2022-1462)

- A use-after-free flaw was found in the Linux kernel's Atheros wireless adapter driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-1679)

- A flaw was found in the Linux kernel's KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service. (CVE-2022-2153)

- There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)

- An out-of-bounds read flaw was found in the Linux kernel's TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory. (CVE-2022-1462) (CVE-2022-2586)

- kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)

- Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).
Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)

- Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access. (CVE-2022-26373)

- An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nf_conntrack_irc configured. (CVE-2022-2663)

- A race condition was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. This flaw could allow a local attacker to potentially trigger an out-of-bounds write or leak kernel heap memory by performing an out-of-bounds read and copying it into a socket. (CVE-2022-3028)

- Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. (CVE-2022-33744)

- An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. (CVE-2022-36879)

- nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len. (CVE-2022-36946)

- An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs. (CVE-2022-39188)

- An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur. (CVE-2022-39842)

- An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a race condition with a resultant use-after-free. (CVE-2022-40307)

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


Upgrade the linux packages.

For Debian 10 buster, these problems have been fixed in version 4.19.260-1.

See Also

Plugin Details

Severity: High

ID: 165623

File Name: debian_DLA-3131.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/2/2022

Updated: 10/3/2022

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent

Risk Information


Risk Factor: Critical

Score: 9.5


Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:H/RL:OF/RC:C

CVSS Score Source: CVE-2022-1679


Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:H/RL:O/RC:C

CVSS Score Source: CVE-2022-39842

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:hyperv-daemons, p-cpe:/a:debian:debian_linux:libbpf-dev, p-cpe:/a:debian:debian_linux:libbpf4.19, p-cpe:/a:debian:debian_linux:libcpupower-dev, p-cpe:/a:debian:debian_linux:libcpupower1, p-cpe:/a:debian:debian_linux:linux-compiler-gcc-8-arm, p-cpe:/a:debian:debian_linux:linux-compiler-gcc-8-x86, p-cpe:/a:debian:debian_linux:linux-config-4.19, p-cpe:/a:debian:debian_linux:linux-cpupower, p-cpe:/a:debian:debian_linux:linux-doc-4.19, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-686, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-686-pae, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-all, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-all-amd64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-all-arm64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-all-armhf, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-all-i386, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-amd64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-arm64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-armmp, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-armmp-lpae, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-cloud-amd64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-common, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-common-rt, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-rt-686-pae, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-rt-amd64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-rt-arm64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-19-rt-armmp, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-686-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-686-pae-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-686-pae-unsigned, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-686-unsigned, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-amd64-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-amd64-unsigned, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-arm64-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-arm64-unsigned, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-armmp, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-armmp-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-armmp-lpae, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-armmp-lpae-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-cloud-amd64-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-cloud-amd64-unsigned, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-rt-686-pae-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-rt-686-pae-unsigned, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-rt-amd64-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-rt-amd64-unsigned, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-rt-arm64-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-rt-arm64-unsigned, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-rt-armmp, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-19-rt-armmp-dbg, p-cpe:/a:debian:debian_linux:linux-image-amd64-signed-template, p-cpe:/a:debian:debian_linux:linux-image-arm64-signed-template, p-cpe:/a:debian:debian_linux:linux-image-i386-signed-template, p-cpe:/a:debian:debian_linux:linux-kbuild-4.19, p-cpe:/a:debian:debian_linux:linux-libc-dev, p-cpe:/a:debian:debian_linux:linux-perf-4.19, p-cpe:/a:debian:debian_linux:linux-source-4.19, p-cpe:/a:debian:debian_linux:linux-support-4.19.0-19, p-cpe:/a:debian:debian_linux:usbip, cpe:/o:debian:debian_linux:10.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/2/2022

Vulnerability Publication Date: 10/2/2022

Reference Information

CVE: CVE-2021-4159, CVE-2021-33655, CVE-2021-33656, CVE-2022-1462, CVE-2022-1679, CVE-2022-2153, CVE-2022-2318, CVE-2022-2586, CVE-2022-2588, CVE-2022-2663, CVE-2022-3028, CVE-2022-26365, CVE-2022-26373, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742, CVE-2022-33744, CVE-2022-36879, CVE-2022-36946, CVE-2022-39188, CVE-2022-39842, CVE-2022-40307