CVE-2026-89551

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: xdrbuftrim: clamp buf-len to avoid underflow xdrbuftrim trims len bytes from the tail of an xdrbuf by walking the tail, pages, and head iovecs. Each per-section step uses mint so it never removes more bytes than that...

CVE-2026-89542

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: harden gsskrb5unwrapv2 against short tokens gsskrb5unwrapv2 reads the EC and RRC header fields at ptr+4 and ptr+6 before validating that the token is at least GSSKRB5TOKHDRLEN 16 bytes long, and its rotateleft helper pass...

CVE-2026-89551 SUNRPC: xdr_buf_trim: clamp buf->len to avoid underflow

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: xdrbuftrim: clamp buf-len to avoid underflow xdrbuftrim trims len bytes from the tail of an xdrbuf by walking the tail, pages, and head iovecs. Each per-section step uses mint so it never removes more bytes than that...

CVE-2026-89542 SUNRPC: harden gss_krb5_unwrap_v2 against short tokens

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: harden gsskrb5unwrapv2 against short tokens gsskrb5unwrapv2 reads the EC and RRC header fields at ptr+4 and ptr+6 before validating that the token is at least GSSKRB5TOKHDRLEN 16 bytes long, and its rotateleft helper pass...

EUVD-2026-76453

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: harden gsskrb5unwrapv2 against short tokens gsskrb5unwrapv2 reads the EC and RRC header fields at ptr+4 and ptr+6 before validating that the token is at least GSSKRB5TOKHDRLEN 16 bytes long, and its rotateleft helper pass...

CVE-2026-89532 svcrdma: Fix pcl_for_each_segment for empty chunks

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Fix pclforeachsegment for empty chunks When a parsed chunk list contains a chunk whose chsegcount is zero, pclforeachsegment computes its inclusive upper bound as &chunk-chsegmentschsegcount - 1. chsegcount is u32, so th...

PT-2026-90258

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: harden gss krb5 unwrap v2 against short tokens gss krb5 unwrap v2 reads the EC and RRC header fields at ptr+4 and ptr+6 before validating that the token is at least GSS KRB5 TOK HDR LEN 16 bytes long, and its rotate left...

PT-2026-90267

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: xdr buf trim: clamp buf-len to avoid underflow xdr buf trim trims len bytes from the tail of an xdr buf by walking the tail, pages, and head iovecs. Each per-section step uses min t so it never removes more bytes than tha...

gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading to out-of-bounds read/write

A flaw was found in GStreamer gst-plugins-good avidemux. When parsing FUJIFILM metadata in an AVI strd chunk, gstavidemuxparsestrd decrements a remaining-length counter by fixed offsets 98 and 10 bytes without verifying sufficient data remains. For crafted strd payloads of exactly 106 or 107 byte...

CVE-2022-2869-detector

CVE-2022-2869 CodeQL 탐지기 이 프로젝트는 CVE-2022-2869의 근본 취약점부호 없는 뺄셈이 산술 연산 전에 충분한 하한/순서 가드를 설정하지 않아 언더플로가 발생할 수 있는 문제에 대한 일반적인 CodeQL 탐지기를 구현합니다. 이 버전이 이전 쿼리와 다른 이유 이 탐지기는 tiffcrop.c, 함수 이름 또는 변수 이름을 하드코딩하는 대신 근본 원인CWE-191 을 의도적으로 보고합니다. 가드 추론이 제어 흐름/범위 분석에 기반한 CodeQL의 표준 Overflow 라이브러리를 사용합니다. 제어 흐름 ...

389-ds-base: 389-ds-base: heap buffer overflow via SASL wrapped-record length lower-bound underflow in sasl_io_start_packet()

A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server 389-ds-base. In sasliostartpacket, the wrapped-record length read from the wire is validated only against an upper bound. A small wire length 0, 1, or 2 produces an encryptedbuffercount below the already-consumed...

CVE-2023-52356-libtiff-analysis

CVE-2023-52356 – libtiff TIFFReadRGBATileExt 분석 개요 이 실습은 libtiff의 CVE-2023-52356을 분석하며, TIFFReadRGBATileExt가 유효한 이미지 경계를 벗어난 이미지 좌표를 수신할 때의 동작에 초점을 맞춥니다. 이 분석에는 원본 크래시 재현, AddressSanitizer 및 GDB를 사용한 디버깅, 근본 원인 분석, 업스트림 패치 검토, 원본 리프로듀서 분석, 수정 버전 검증이 포함됩니다. 테스트 환경 대상: libtiff 취약 커밋: 4d0329a4 수정 커밋...

CVE-2026-18355

A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server 389-ds-base. In sasliostartpacket, the wrapped-record length read from the wire is validated only against an upper bound. A small wire length 0, 1, or 2 produces an encryptedbuffercount below the already-consumed...

CVE-2026-18355

A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server 389-ds-base. In sasliostartpacket, the wrapped-record length read from the wire is validated only against an upper bound. A small wire length 0, 1, or 2 produces an encryptedbuffercount below the already-consumed...

EUVD-2026-72455

A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server 389-ds-base. In sasliostartpacket, the wrapped-record length read from the wire is validated only against an upper bound. A small wire length 0, 1, or 2 produces an encryptedbuffercount below the already-consumed...

CVE-2026-18355

A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server 389-ds-base. In sasliostartpacket, the wrapped-record length read from the wire is validated only against an upper bound. A small wire length 0, 1, or 2 produces an encryptedbuffercount below the already-consumed...

PT-2026-86816

A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server 389-ds-base. In sasl io start packet, the wrapped-record length read from the wire is validated only against an upper bound. A small wire length 0, 1, or 2 produces an encrypted buffer count below the...

CVE-2026-67277 Kernel memory disclosure and denial of service in MikroTik RouterOS btest service

RouterOS accepts a "related" btest connection before the corresponding primary session has completed authentication. An unauthenticated client can use this state to start an IPv4 UDP test. With "random-data=false", the sender transmits an uninitialized tail from a kernel packet buffer. A separate...

VulnCheck KEV: CVE-2026-67277

RouterOS accepts a "related" btest connection before the corresponding primary session has completed authentication. An unauthenticated client can use this state to start an IPv4 UDP test. With "random-data=false", the sender transmits an uninitialized tail from a kernel packet buffer. A separate...

kernel: iomap: fix out-of-bounds bitmap_set() with zero-length range

A flaw was found in the Linux kernel's iomap subsystem. An unsigned subtraction underflow occurs when ifssetrangedirty or ifssetrangeuptodate are called with a zero-length range. This can lead to an out-of-bounds write via bitmapset, potentially allowing a local attacker to cause memory corruptio...