[CLSA-2026:1789641466] Fix CVE(s): CVE-2026-54874
Type:
security
Severity:
Important
Release date:
2026-09-17 10:37:57 UTC
Description:
* SECURITY UPDATE: avoid buffering the whole DTLS read buffer for a record arriving early for the next epoch (ssl/record/rec_layer_d1.c) - debian/patches/CVE-2026-54874.patch: dtls1_buffer_record() took over the entire live read buffer for every queued record and allocated a fresh one, pinning about 16.7 KB of heap per queued record however small the record actually was, across three queues capped at 100 entries each; copy only the record's own on-wire bytes into a right-sized allocation and restore them into the live read buffer on retrieval, in ssl/record/rec_layer_d1.c, ssl/record/record.h and ssl/record/ssl3_record.c - CVE-2026-54874 * Stop 30-test_afalg.t failing the armel build - debian/rules: exclude that one test recipe on armel, where the builder's io_setup(2) is not implemented so the AF_ALG engine cannot be exercised; the engine is still built and shipped and every other architecture still runs the test
CVEs fixed:
Updated packages:
  • libssl-dev_1.1.1w-0+deb11u8+tuxcare.els1_amd64.deb
    sha:1c0a418d60af9624bf6cb69caa346037ba8be687
  • libssl-doc_1.1.1w-0+deb11u8+tuxcare.els1_all.deb
    sha:269b3ce5f25a14228c929e9d0971fc055c77443c
  • libssl1.1_1.1.1w-0+deb11u8+tuxcare.els1_amd64.deb
    sha:1fd6c343ac65e2f70f5d4d1267bc6040a32d80ec
  • openssl_1.1.1w-0+deb11u8+tuxcare.els1_amd64.deb
    sha:0cf0cbd4182c566101f95106d9b906ced67c72ce
  • libssl-dev_1.1.1w-0+deb11u8+tuxcare.els1_arm64.deb
    sha:0f42c8145d2b9f8bb57ef59d1e6fd1c4beb5c7de
  • libssl1.1_1.1.1w-0+deb11u8+tuxcare.els1_arm64.deb
    sha:2af9ea86d1fe2062570d10e4687239c27163d93e
  • openssl_1.1.1w-0+deb11u8+tuxcare.els1_arm64.deb
    sha:dffcbc8961084131db3d383eefcf56d55e565ed7
  • libssl-dev_1.1.1w-0+deb11u8+tuxcare.els1_armel.deb
    sha:12eab2d409d4c7745bbf267cfb6b3d2872daa323
  • libssl1.1_1.1.1w-0+deb11u8+tuxcare.els1_armel.deb
    sha:aad267468797de1a99e791b37788d8c2464a944b
  • openssl_1.1.1w-0+deb11u8+tuxcare.els1_armel.deb
    sha:523271dbb82b029c2fb9625b069e2013839cb164
Notes:
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