FreeBSD -- Remote DoS via receive-side kernel TLS

Problem Description: TLS 1.3 embeds the actual record type as the last non-zero byte of the decrypted payload, optionally followed by zero padding. The code which searches for the inner record type had an off-by-one bug which could be triggered by an invalid frame, leading to an underflow followe...

cve-2025-39682

Exploit de CVE-2025-39682 en instancia de mitigación de kernelCTF Este es también mi primer exploit de 1 día ? no sé, esta es una variante de CVE-2024-58239. Parche: tls: corrige el manejo de registros de longitud cero en rxlist Este CVE se usó en exp398 y exp403. Hoja de cálculo de kernelCTF. Pa...

cve-2024-58239

exploit de mitigación CVE-2024-58239 Este es mi primer exploit de 1 día. Parche: tls: stop recv if initial processrxlist gave us non-DATA Vi exp407 en la hoja de cálculo de kernelCTF e intenté reproducir el exploit. Logré ejecutar el exploit en el entorno de kernelCTF y obtuve la bandera: Escribi...

CVE-2026-64025

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter sockmap component when used with kernel TLS kTLS receive. A race condition exists where skpsockverdictdataready can improperly interact with the kTLS receive process. This can lead to a use-after-free vulnerability, potentially...

CVE-2026-64047

The CVE-2026-64047 issue is in the Linux kernel’s net: tls code, specifically an off-by-one in sg_chain entry counting for the wrapped sk_msg scatterlist ring. When sg.end

CVE-2026-64025

CVE-2026-64025 affects Linux kernel BPF plumbing where a TLS RX context could cause a use-after-free-like condition in data-path when a socket is inserted into a sockmap before TLS RX is configured. The issue arises because sk_psock_verdict_data_ready() does not guard against TLS RX ownership of ...

FreeBSD : FreeBSD -- Remote DOS via uninitialized memory access in KTLS receive (fb1bf2ae-74e2-11f1-958d-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the fb1bf2ae-74e2-11f1-958d-bc241121aa0a advisory. When building the iovec array for a received TLS 1.2 CBC record, ktlsocftlscbcdecrypt incremented the...

FreeBSD Security Advisory - FreeBSD-SA-26:46.ktls

FreeBSD Security Advisory - When building the iovec array for a received TLS 1.2 CBC record, ktlsocftlscbcdecrypt incremented the iovec index for every mbuf in the chain, including mbufs that were skipped because they contained only TLS header bytes. This left uninitialized entries in the iovec...

FreeBSD-SA-26:46.ktls

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:46.ktls Security Advisory The FreeBSD Project Topic: Remote DOS via uninitialized memory access in KTLS receive Category: core Module: ktls Announced:...

EUVD-2026-39780

The KTLS receive path decrypted each record in place, assuming that the mbufs holding received data were anonymous and safe to modify. This assumption does not hold for data placed on a socket by sendfile2, which can reference file-backed memory directly through non-anonymous MEXTPG pages or...

CVE-2026-45257 Arbitrary file overwrite via the KTLS receive path

The KTLS receive path decrypted each record in place, assuming that the mbufs holding received data were anonymous and safe to modify. This assumption does not hold for data placed on a socket by sendfile2, which can reference file-backed memory directly through non-anonymous MEXTPG pages or...

CVE-2026-45257 Arbitrary file overwrite via the KTLS receive path

The KTLS receive path decrypted each record in place, assuming that the mbufs holding received data were anonymous and safe to modify. This assumption does not hold for data placed on a socket by sendfile2, which can reference file-backed memory directly through non-anonymous MEXTPG pages or...

The vulnerability of the Kernel TLS (KTLS) technology in FreeBSD systems allows attackers to increase their privileges.

The vulnerability of the Kernel TLS KTLS technology in FreeBSD systems is related to inadequate control over resources throughout their entire lifecycle. Exploiting this vulnerability can allow attackers to enhance their privileges...

FreeBSD -- Arbitrary file overwrite via the KTLS receive path

Problem Description: The KTLS receive path decrypted each record in place, assuming that the mbufs holding received data were anonymous and safe to modify. This assumption does not hold for data placed on a socket by sendfile2, which can reference file-backed memory directly through non-anonymous...

FreeBSD Security Advisory - FreeBSD-SA-26:26.ktls

FreeBSD Security Advisory - The KTLS receive path decrypted each record in place, assuming that the mbufs holding received data were anonymous and safe to modify. This assumption does not hold for data placed on a socket by sendfile2, which can reference file-backed memory directly through...

FreeBSD-SA-26:26.ktls

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:26.ktls Security Advisory The FreeBSD Project Topic: Arbitrary file overwrite via the KTLS receive path Category: core Module: ktls Announced: 2026-06-09...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: kTLS; fixed a crash that occurred during the RX resync process. For the TLS RX resync process, we maintain a list of TLS contexts that require some attention. We communicate their resync information to the hardware...

CVE-2026-23414

CVE-2026-23414 is addressed in the Linux kernel TLS code. The vulnerability involved the async_hold queue that pins encrypted input skbs while AEAD operations reference scatterlist data. The fix centralizes purge of async_hold in tls_decrypt_async_wait(), ensuring all callers (recvmsg drain path,...

SUSE-SU-2026:0274-1 Security update for the Linux Kernel (Live Patch 10 for SUSE Linux Enterprise 15 SP6)

This update for the SUSE Linux Enterprise kernel 6.4.0-150600.23.47 fixes various security issues The following security issues were fixed: - CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in liotargetnaclinfoshow bsc1251787. - CVE-2025-38476: rpl: Fix use-after-free in rpldosrhinline...

Security update for the Linux Kernel (Live Patch 8 for SUSE Linux Enterprise 15 SP6)

This update for the SUSE Linux Enterprise kernel 6.4.0-150600.23.38 fixes various security issues The following security issues were fixed: CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in liotargetnaclinfoshow bsc1251787. CVE-2025-38476: rpl: Fix use-after-free in rpldosrhinline...