Astra Linux – Vulnerabilities in Python 2.7, Python 3.11, Python 3.7

There is a defect in the CPython “tarfile” module that affects the “TarFile” extraction and entry enumeration APIs. The tar implementation processes tar archives with negative offsets without errors, which can lead to an infinite loop and deadlock during the parsing of maliciously crafted tar...

CVE-2026-68462

A flaw was found in the Linux kernel. The BPF Berkeley Packet Filter verifier, responsible for ensuring the safety of BPF programs, incorrectly processed negative constant offsets when accessing buffer pointers. This oversight could allow a local attacker to craft a malicious BPF program that...

CVE-2026-11743

The SF32LB MPI QSPI NOR flash driver drivers/flash/flashsf32lbmpiqspinor.c validated the flash offset and length on its read and write paths with the test offset + size data-size. Because offset is a signed offt while size is unsigned, a negative offset is converted to a large unsigned value and...

EUVD-2026-54682

The SF32LB MPI QSPI NOR flash driver drivers/flash/flashsf32lbmpiqspinor.c validated the flash offset and length on its read and write paths with the test offset + size data-size. Because offset is a signed offt while size is unsigned, a negative offset is converted to a large unsigned value and...

SUSE CVE-2026-46331

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcfpeditact computes the COW range for skbensurewritable once before the key loop using tcfpoffmaxhint, but the hint does not account for the runtime header offset...

CVE-2026-46331

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcfpeditact computes the COW range for skbensurewritable once before the key loop using tcfpoffmaxhint, but the hint does not account for the runtime header offset...

CVE-2026-46331

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcfpeditact computes the COW range for skbensurewritable once before the key loop using tcfpoffmaxhint, but the hint does not account for the runtime header offset...

CVE-2026-46331

CVE-2026-46331 affects the Linux kernel net/sched pedit action (tcf_pedit_act). The root cause is an incorrect copy-on-write (COW) range calculation: skb_ensure_writable() was called once before the key loop using tcfp_off_max_hint, which does not account for runtime header offsets added by typed...

CVE-2026-46331 net/sched: fix pedit partial COW leading to page cache corruption

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcfpeditact computes the COW range for skbensurewritable once before the key loop using tcfpoffmaxhint, but the hint does not account for the runtime header offset...

EUVD-2026-37039

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcfpeditact computes the COW range for skbensurewritable once before the key loop using tcfpoffmaxhint, but the hint does not account for the runtime header offset...

CVE-2026-46331

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcfpeditact computes the COW range for skbensurewritable once before the key loop using tcfpoffmaxhint, but the hint does not account for the runtime header offset...

PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

SUSE CVE-2025-8194

There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives...

CVE-2026-7258

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

PT-2026-40281

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, some functions, including urldecode, pass signed char to ctype functions like isxdigit. On the systems with default signed char and optimized table-lookup ctype functions - such as NetBSD - this can...

PT-2026-39446

Name of the Vulnerable Software and Affected Versions PHP versions 8.2.0 through 8.2.30 PHP versions 8.3.0 through 8.3.30 PHP versions 8.4.0 through 8.4.20 PHP versions 8.5.0 through 8.5.5 Description Certain functions, including urldecode, pass signed characters to ctype functions such as...

CLSA-2026-1777944317 Fix CVE(s): CVE-2025-8194, CVE-2026-4519, CVE-2026-4786

SECURITY UPDATE: tarfile DoS via negative member offsets - debian/patches/CVE-2025-8194.patch: validate that member offsets are non-negative in Lib/tarfile.py. - CVE-2025-8194 SECURITY UPDATE: webbrowser.open accepts URLs with leading dashes - debian/patches/CVE-2026-4519-CVE-2026-4786.patch:...

CLSA-2026-1777944042 Fix CVE(s): CVE-2025-8194, CVE-2026-4519, CVE-2026-4786

SECURITY UPDATE: tarfile DoS via negative member offsets - debian/patches/CVE-2025-8194.patch: validate that member offsets are non-negative in Lib/tarfile.py. - CVE-2025-8194 SECURITY UPDATE: webbrowser.open accepts URLs with leading dashes - debian/patches/CVE-2026-4519-CVE-2026-4786.patch:...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: python3 (UTSA-2026-015069)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-015069 advisory. There is a defect in the CPython tarfile module affecting the TarFile extraction and entry enumeration APIs. The tar implementation would process tar archives with...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...