[CLSA-2026:1789647383] Fix CVE(s): CVE-2026-34180, CVE-2026-42766, CVE-2026-54874
Type:
security
Severity:
Important
Release date:
2026-09-18 08:59:56 UTC
Description:
* SECURITY UPDATE: excessive memory use buffering DTLS records - debian/patches/openssl-1.1.1-cve-2026-54874.patch: copy only the record's own on-wire bytes into the queue entry in dtls1_buffer_record(), and copy them back into the live read buffer in dtls1_copy_record(), instead of handing the whole ~16.7KB read buffer to the queue and allocating a fresh one, so a peer sending a stream of tiny next-epoch records can no longer pin ~1.7MB of heap per connection; also lower the cap on the next-epoch (unprocessed_rcds) queue from 100 records to 16, which the same patch passes to dtls1_buffer_record() as an argument so that the other two queues keep the 100-record limit. - CVE-2026-54874
Updated packages:
  • alt-openssl11_1.1.1w-3.10_amd64.deb
    sha:7125e87623f70209c9adfc073a4c7eed43218512
  • alt-openssl11-dev_1.1.1w-3.10_amd64.deb
    sha:e66e09b2e3398fe88370ee5be47073e783bae417
  • alt-openssl11-doc_1.1.1w-3.10_all.deb
    sha:230ab59047b6ffda93e8dc0ffa20ac191b19c42f
  • alt-openssl11-libs_1.1.1w-3.10_amd64.deb
    sha:39dd19fcd6e9ffc0d85a5330881bb90076684594
Notes:
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