| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| A memory corruption vulnerability exists in the web-based management interface of AOS-8. Successful exploitation could allow an authenticated low privilege attacker with local access to view some system files and interrupt the normal operation of the affected service. |
| A memory corruption vulnerability exists in AOS-8 that could allow an authenticated local attacker to execute arbitrary code. Successful exploitation could allow the attacker to execute arbitrary code as a privileged user on the underlying operating system. |
| In the Linux kernel, the following vulnerability has been resolved:
mm/damon/ops-common: use a page-aligned address in damon_ptep_mkold()
__damon_va_prepare_access_check() picks a random byte address within the
region and stores it in r->sampling_addr. damon_va_mkold() passes it into
a page table walk, which hands it to damon_ptep_mkold() as the address of
the page to sample:
damon_va_mkold(mm, r->sampling_addr)
damon_va_walk_page_range(mm, addr, addr + 1)
damon_mkold_pmd_entry()
damon_ptep_mkold(pte, vma, addr)
ptep_test_and_clear_young(vma, addr, pte)
mmu_notifier_clear_young(mm, addr, addr + PAGE_SIZE)
For arm64, before commit 6f0e1142173a ("arm64: mm: support batch clearing
of the young flag for large folios"), the contpte helper walked exactly
CONT_PTES entries from the aligned-down page table pointer and used @addr
only to pass down to each entry, so an unaligned value was harmless:
ptep = contpte_align_down(ptep);
addr = ALIGN_DOWN(addr, CONT_PTE_SIZE);
for (i = 0; i < CONT_PTES; i++, ptep++, addr += PAGE_SIZE)
Now the range to walk is derived from @addr instead: end = addr + nr *
PAGE_SIZE, rounded up to CONT_PTE_SIZE. For a sample in the last page of
a contpte block, the sub-page offset puts end just past the block
boundary, so the round-up lands a whole block further and the walk clears
PTE_AF in CONT_PTES entries beyond the sampled block. For the last block
in a page table page, those entries are past the end of that page, so the
walk writes into the page that follows.
Triggered by the full 7.1/7.2 kernel selftest suite on arm64 (EC2
c/m6g.4xlarge). The kernel sometimes crashes at or shortly after the
DAMON test.
What the overrun does depends on the page that happens to follow the page
table, so there is no single signature. If that page is read-only, the
write faults in the sampling path itself:
Unable to handle kernel write to read-only memory at virtual address ffff0003c5d2d000
FSC = 0x0f: level 3 permission fault
CM = 0, WnR = 1, TnD = 0, TagAccess = 0
CPU: 10 UID: 0 PID: 3487 Comm: kdamond.2
pc : contpte_test_and_clear_young_ptes+0x70/0xc0
lr : damon_ptep_mkold+0x1e8/0x1f8
Call trace:
contpte_test_and_clear_young_ptes+0x70/0xc0 (P)
damon_mkold_pmd_entry+0x150/0x170
walk_pmd_range+0x110/0x2b0
walk_pud_range+0x10c/0x208
walk_pgd_range+0x134/0x258
__walk_page_range+0x98/0x1b0
walk_page_range_vma_unsafe+0x90/0x148
walk_page_range_vma+0x28/0x40
damon_va_walk_page_range+0x114/0x2b8
damon_va_prepare_access_checks+0xec/0x1a8
kdamond_fn+0x534/0x770
kthread+0x128/0x138
ret_from_fork+0x10/0x20
Otherwise the page is writable, the PTE_AF clearing succeeds silently and
the damage only surfaces later, in whatever happened to own the page, so
the backtrace is unrelated to DAMON and differs between runs.
Pass a page-aligned address to the ptep_test_and_clear_young() call in
damon_ptep_mkold(), which is the only place DAMON can reach
contpte_test_and_clear_young_ptes() from. Nothing else sees the aligned
address, and r->sampling_addr itself is left as is, so the sampling and
region bookkeeping semantics are unchanged. |
| A buffer overflow vulnerability in the PAPI protocol of AOS-8 could allow an authenticated remote attacker with high privileges to achieve remote code execution. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system. |
| A buffer overflow vulnerability exists in the PAPI protocol of AOS-8 that could allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain administrative access, modify system configurations, and access or manipulate sensitive data. |
| A buffer overflow vulnerability exists in AOS-8 that could allow an authenticated attacker with administrative access to cause denial of service. Successful exploitation could allow an attacker to crash the system, preventing it from rebooting without manual intervention and disrupting network operations. |
| Memory corruption vulnerabilities in AOS-10 could allow an unauthenticated remote attacker to conduct a denial of service attack. Successful exploitation could allow an attacker to disrupt the availability of the affected service. |
| A buffer overflow vulnerability exists in the command line interface of AOS-8 that could allow an unauthenticated remote attacker to run arbitrary commands on the underlying host if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system leading to complete system compromise. |
| Vulnerabilities in multiple web interface endpoints of AOS-8 devices could allow an unauthenticated remote attacker to trigger a buffer overflow by using specially crafted requests. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system, leading to complete system compromise. |
| A vulnerability in a certain web interface endpoint of AOS-8 devices could allow an unauthenticated remote attacker to trigger a buffer overflow. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system, leading to complete system compromise. |
| An unauthenticated memory corruption vulnerability exists in a service accessed via the PAPI protocol in AOS-8 that could allow an unauthenticated remote attacker to conduct a denial of service attack. Successful exploitation could allow an attacker to disrupt the availability of the affected service. |
| In the Linux kernel, the following vulnerability has been resolved:
net/sched: em_text: reject unterminated algo before autoload
This is a follow-up to commit 9c572a83037a ("net/sched: fix potential
stack infoleak in em_text_dump()"), which zero-initialised the dump-side
struct. Sashiko pointed at a pre-existing bug that exposed the change-side
input-validation gap open.
em_text_change() casts the raw netlink attribute payload to struct
tcf_em_text and passes conf->algo, a 16-byte array with no enforced NUL
terminator, to textsearch_prepare(). On the TS_AUTOLOAD retry
textsearch_prepare() calls request_module("ts_%s", algo); vsnprintf()
walks %s until it finds a NUL, so an algo[] with no NUL reads past the
array into the adjacent struct fields and payload and feeds those bytes
to the usermode helper command line. This is an out-of-bounds read and
a kernel memory disclosure.
Reject the attribute when no NUL exists within TC_EM_TEXT_ALGOSIZ bytes,
matching the check xt_string has had since 3ab720881b6e.
Conditions to recreate the bug:
- CAP_NET_ADMIN on the target netns (namespace-local via unshare -Urn
is enough)
- install clsact on an interface, then add a basic filter with one text
ematch whose algo[] is 16 bytes with no NUL (e.g. "A"*16) and
pattern_len at least 1
- the add fails with -ENOENT and the kernel invokes modprobe with a
module name made of "ts_" plus the 16 bytes and the adjacent payload |
| A buffer overflow vulnerability exists in the API of AOS-10 that could allow an authenticated adjacent attacker with high privileges to achieve remote code execution. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system. |
| An unauthenticated buffer overflow vulnerability exists in the command line interface of AOS-8. Successful exploitation could allow an unauthenticated remote attacker to disrupt the availability of the affected interface, along with limited access to or modification of some system data. |
| An unauthenticated buffer overflow vulnerability exists in the underlying operating system of AOS-10 or AOS-8 and could allow an unauthenticated adjacent attacker to conduct a denial of service attack. Successful exploitation could allow an attacker to disrupt the availability of the affected system, with a limited impact to the integrity of the affected component. |
| A buffer overflow vulnerability exists in the underlying operating system of AOS that could lead to unauthenticated remote code execution by an unauthenticated remote attacker. Successful exploitation of this vulnerability results in the ability to execute arbitrary code as a privileged user on the underlying operating system. |
| A memory corruption vulnerability in the affected interface of AOS-10 could allow an unauthenticated adjacent attacker to achieve remote code execution. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system. |
| Buffer overflow vulnerabilities exist in the affected interface of AOS-10 that could lead to unauthenticated remote code execution. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system, leading to complete system compromise. |
| Buffer overflow vulnerabilities in the affected interface of AOS-10 could lead to unauthenticated remote code execution by sending specially crafted packets to the affected interface. Successful exploitation of this vulnerability results in the ability to execute arbitrary code as a privileged user on the underlying operating system. |
| In the Linux kernel, the following vulnerability has been resolved:
media: chips-media: wave5: Add range checks for dec_output_info
If the driver's dec_output_info contains invalid data the driver can
write in invalid memory. Add a range check for that.
This fixes this smatch error:
drivers/media/platform/chips-media/wave5/wave5-vpuapi.c:588 wave5_vpu_dec_get_output_info() error: buffer overflow 'inst->frame_buf' 64 <= 127 |
