Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - 已修复 Linux 内核中的下列漏洞：net/tls: fix use-after-free in -EBUSY error path of tls_do_encryption The -EBUSY handling in tls_do_encryption(), introduced by commit 859054147318 (net: tls: handle backlogging of crypto requests), has a use-after-free due to double cleanup of encrypt_pending and the scatterlist entry. When crypto_aead_encrypt() returns -EBUSY, the request is enqueued to the cryptd backlog and the async callback tls_encrypt_done() will be invoked upon completion. That callback unconditionally restores the scatterlist entry (sge->offset, sge->length) and decrements ctx->encrypt_pending. However, if tls_encrypt_async_wait() returns an error, the synchronous error path in tls_do_encryption() performs the same cleanup again, double-decrementing encrypt_pending and double-restoring the scatterlist. The double-decrement corrupts the encrypt_pending sentinel (initialized to 1), making tls_encrypt_async_wait() permanently skip the wait for pending async callbacks. A subsequent sendmsg can then free the tls_rec via bpf_exec_tx_verdict() while a cryptd callback is still pending, resulting in a use-after-free when the callback fires on the freed record. Fix this by skipping the synchronous cleanup when the -EBUSY async wait returns an error, since the callback has already handled encrypt_pending and sge restoration. (CVE-2026-31533)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

检测

Linux Distros 未修补的漏洞：CVE-2026-31533

critical Nessus 插件 ID 310043

版本 1.14

版本 1.13

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版本 1.11

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版本 1.3

版本 1.2

版本 1.1

版本 1.14 Jun 12, 2026, 7:53 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202606121953
版本 1.13 Jun 10, 2026, 6:51 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202606100651
版本 1.12 Jun 5, 2026, 1:04 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202606051304
版本 1.11 Jun 4, 2026, 6:01 AM Plugin metadata Detection (updated detection logic) Plugin Feed: 202606040601
版本 1.10 May 25, 2026, 10:30 PM Plugin metadata Detection (updated detection logic) Plugin Feed: 202605252230
版本 1.8 May 20, 2026, 10:33 PM CVSS metrics ("CVSSv2 score" set to 7.2) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C") CVSSv2 severity (based on CVE-2026-31533, severity increased from "Medium" to "High") Detection (updated detection logic) Plugin metadata Plugin Feed: 202605202233
版本 1.7 May 3, 2026, 4:59 AM Plugin metadata Detection (updated detection logic) CVSSv2 severity (based on CVE-2026-31533, severity decreased from "High" to "Medium") CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:C") CVSS metrics ("CVSSv2 score" set to 5.6) Plugin Feed: 202605030459
版本 1.6 May 2, 2026, 11:12 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202605022312
版本 1.5 Apr 28, 2026, 1:11 PM Plugin metadata Detection (updated detection logic) Plugin Feed: 202604281311
版本 1.4 Apr 28, 2026, 8:33 AM Plugin metadata Detection (updated detection logic) CVSS metrics ("CVSSv3 score" set to 9.8. "CVSSv3 vector" set to "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H") Plugin Feed: 202604280833
版本 1.3 Apr 25, 2026, 4:14 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202604251614
版本 1.2 Apr 25, 2026, 1:42 AM CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C") Detection (updated detection logic) Plugin metadata CVSS metrics ("CVSSv2 score" set to 7.2) CVSS metrics ("CVSSv3 score" set to 7.8) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H") Plugin Feed: 202604250142
版本 1.1 Apr 24, 2026, 7:33 AM New Plugin Feed: 202604240733