Yearly Archives: 2024

News

TikTok Editorial Analysis

Read Time:32 Second

TikTok seems to be skewing things in the interests of the Chinese Communist Party. (This is a serious analysis, and the methodology looks sound.)

Conclusion: Substantial Differences in Hashtag Ratios Raise
Concerns about TikTok’s Impartiality

Given the research above, we assess a strong possibility that content on TikTok is either amplified or suppressed based on its alignment with the interests of the Chinese Government. Future research should aim towards a more comprehensive analysis to determine the potential influence of TikTok on popular public narratives. This research should determine if and how TikTok might be utilized for furthering national/regional or international objectives of the Chinese Government.

Read More

Advisories

USN-6563-1: Thunderbird vulnerabilities

Read Time:1 Minute, 3 Second

Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.(CVE-2023-6857, CVE-2023-6858,
CVE-2023-6859, CVE-2023-6861, CVE-2023-6862, CVE-2023-6863, CVE-2023-6864)

Marcus Brinkmann discovered that Thunderbird did not properly parse a PGP/MIME
payload that contains digitally signed text. An attacker could potentially
exploit this issue to spoof an email message. (CVE-2023-50762)

Marcus Brinkmann discovered that Thunderbird did not properly compare the
signature creation date with the message date and time when using digitally
signed S/MIME email message. An attacker could potentially exploit this
issue to spoof date and time of an email message. (CVE-2023-50761)

DoHyun Lee discovered that Thunderbird did not properly manage memory when
used on systems with the Mesa VM driver. An attacker could potentially
exploit this issue to execute arbitrary code. (CVE-2023-6856)

Andrew Osmond discovered that Thunderbird did not properly validate the
textures produced by remote decoders. An attacker could potentially exploit
this issue to escape the sandbox. (CVE-2023-6860)

Read More

Advisories

USN-6562-1: Firefox vulnerabilities

Read Time:54 Second

Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code.(CVE-2023-6865,
CVE-2023-6857, CVE-2023-6858, CVE-2023-6859, CVE-2023-6866, CVE-2023-6867,
CVE-2023-6861, CVE-2023-6869, CVE-2023-6871, CVE-2023-6872, CVE-2023-6863,
CVE-2023-6864, CVE-2023-6873)

DoHyun Lee discovered that Firefox did not properly manage memory when used
on systems with the Mesa VM driver. An attacker could potentially exploit
this issue to execute arbitrary code. (CVE-2023-6856)

George Pantela and Hubert Kario discovered that Firefox using multiple NSS
NIST curves which were susceptible to a side-channel attack known as
“Minerva”. An attacker could potentially exploit this issue to obtain
sensitive information. (CVE-2023-6135)

Andrew Osmond discovered that Firefox did not properly validate the textures
produced by remote decoders. An attacker could potentially exploit this
issue to escape the sandbox. (CVE-2023-6860)

Read More

Advisories

DSA-5594-1 linux – security update

Read Time:3 Minute, 13 Second

Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.

CVE-2021-44879

Wenqing Liu reported a NULL pointer dereference in the f2fs
implementation. An attacker able to mount a specially crafted image
can take advantage of this flaw for denial of service.

CVE-2023-5178

Alon Zahavi reported a use-after-free flaw in the NVMe-oF/TCP
subsystem in the queue initialization setup, which may result in
denial of service or privilege escalation.

CVE-2023-5197

Kevin Rich discovered a use-after-free flaw in the netfilter
subsystem which may result in denial of service or privilege
escalation for a user with the CAP_NET_ADMIN capability in any user
or network namespace.

CVE-2023-5717

Budimir Markovic reported a heap out-of-bounds write vulnerability
in the Linux kernel’s Performance Events system caused by improper
handling of event groups, which may result in denial of service or
privilege escalation. The default settings in Debian prevent
exploitation unless more permissive settings have been applied in
the kernel.perf_event_paranoid sysctl.

CVE-2023-6121

Alon Zahavi reported an out-of-bounds read vulnerability in the
NVMe-oF/TCP which may result in an information leak.

CVE-2023-6531

Jann Horn discovered a use-after-free flaw due to a race condition
when the unix garbage collector’s deletion of a SKB races
with unix_stream_read_generic() on the socket that the SKB is
queued on.

CVE-2023-6817

Xingyuan Mo discovered that a use-after-free in Netfilter’s
implementation of PIPAPO (PIle PAcket POlicies) may result in denial
of service or potential local privilege escalation for a user with
the CAP_NET_ADMIN capability in any user or network namespace.

CVE-2023-6931

Budimir Markovic reported a heap out-of-bounds write vulnerability
in the Linux kernel’s Performance Events system which may result in
denial of service or privilege escalation. The default settings in
Debian prevent exploitation unless more permissive settings have
been applied in the kernel.perf_event_paranoid sysctl.

CVE-2023-6932

A use-after-free vulnerability in the IPv4 IGMP implementation may
result in denial of service or privilege escalation.

CVE-2023-25775

Ivan D Barrera, Christopher Bednarz, Mustafa Ismail and Shiraz
Saleem discovered that improper access control in the Intel Ethernet
Controller RDMA driver may result in privilege escalation.

CVE-2023-34324

Marek Marczykowski-Gorecki reported a possible deadlock in the Xen
guests event channel code which may allow a malicious guest
administrator to cause a denial of service.

CVE-2023-35827

Zheng Wang reported a use-after-free flaw in the Renesas Ethernet
AVB support driver.

CVE-2023-45863

A race condition in library routines for handling generic kernel
objects may result in an out-of-bounds write in the
fill_kobj_path() function.

CVE-2023-46813

Tom Dohrmann reported that a race condition in the Secure Encrypted
Virtualization (SEV) implementation when accessing MMIO registers
may allow a local attacker in a SEV guest VM to cause a denial of
service or potentially execute arbitrary code.

CVE-2023-46862

It was discovered that a race condition in the io_uring
subsystem may result in a NULL pointer dereference, causing a
denial of service.

CVE-2023-51780

It was discovered that a race condition in the ATM (Asynchronous
Transfer Mode) subsystem may lead to a use-after-free.

CVE-2023-51781

It was discovered that a race condition in the Appletalk subsystem
may lead to a use-after-free.

CVE-2023-51782

It was discovered that a race condition in the Amateur Radio X.25
PLP (Rose) support may lead to a use-after-free. This module is not
auto-loaded on Debian systems, so this issue only affects systems
where it is explicitly loaded.

https://security-tracker.debian.org/tracker/DSA-5594-1

Read More