Към съдържанието
Търсене

CVE-2026-53263: Linux

Няма оценка

CVSS

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: 6lowpan: fix off-by-one in multicast context address compression The second memcpy in lowpan_iphc_mcast_ctx_addr_compress() uses &data[1] as destination and &ipaddr->s6_addr[11] as source, but both should be offset by one: &data[2] and &ipaddr->s6_addr[12] respectively. This off-by-one has two consequences: 1. data[1] is overwritten with s6_addr[11], corrupting the RIID field in the compressed multicast address 2. data[5] is never written, so uninitialized kernel stack memory is transmitted over the network via lowpan_push_hc_data(), leaking kernel stack contents The correct inline data layout must match what the decompression function lowpan_uncompress_multicast_ctx_daddr() expects: data[0..1] = s6_addr[1..2] (flags/scope + RIID) data[2..5] = s6_addr[12..15] (group ID) Also zero-initialize the data array as a defensive measure against similar bugs in the future.

    Засегнати продукти

    • Linux Linux: 5609c185f24dffca5f6a9c127106869da150be03 преди f24a58c72a45f4c109f3557a760cc4b60b7a6037; 5609c185f24dffca5f6a9c127106869da150be03 преди da8cbb64b47e9066b40af0de170901caf17b768c; 5609c185f24dffca5f6a9c127106869da150be03 преди 4485d79617520d84ba5a14515e2b5136007d6deb; 5609c185f24dffca5f6a9c127106869da150be03 преди 06ce6fc106b16dec9b535950db626261be865e5b; 5609c185f24dffca5f6a9c127106869da150be03 преди dcb1bec1c32ee5c3878354e087cf5dbee2b7c7af; 5609c185f24dffca5f6a9c127106869da150be03 преди c32f30ef5e66adbfa102348e2e8a23776eb007cb; 5609c185f24dffca5f6a9c127106869da150be03 преди da8808463882c3f3c357b072e25053c2121f1419; 5609c185f24dffca5f6a9c127106869da150be03 преди 2a58899d11009bffc7b4b32a571858f381121837
    • Linux Linux: 4.6; преди 4.6; 5.10.259 до 5.10.*; 5.15.210 до 5.15.*; 6.1.176 до 6.1.*; 6.6.143 до 6.6.*; 6.12.94 до 6.12.*; 6.18.36 до 6.18.*; 7.0.13 до 7.0.*; от 7.1 нататък
    • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: всички версии

    История

    • 25 юни 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници