CentOS Linux 6 [TuxCare] 安全性更新：核心 / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / etc 多個漏洞 （CENTOS6：CLSA-2025：1758010245）
high Nessus Plugin ID 360785
語言:
概要
CentOS Linux 主機缺少一個或多個安全性更新。說明
CentOS Linux 6 主機已安裝的套件會受到 TuxCare CENTOS6：CLSA-2025：1758010245 公告中提及的多個弱點影響。- 已解決 Linux 核心中的下列弱點：sch_hfsc: make hfsc_qlen_notify() idempotent hfsc_qlen_notify() is not idempotent either and not friendly to its callers, like fq_codel_dequeue(). Let's make it idempotent to ease qdisc_tree_reduce_backlog() callers' life: 1.
update_vf() decreases cl->cl_nactive, so we can check whether it is non-zero before calling it. 2.
eltree_remove() always removes RB node cl->el_node, but we can use RB_EMPTY_NODE() + RB_CLEAR_NODE() to make it safe. (CVE-2025-38177)
- 已解決 Linux 核心中的下列弱點：net: atm: fix /proc/net/atm/lec handling /proc/net/atm/lec must ensure safety against dev_lec[] changes. It appears it had dev_put() calls without prior dev_hold(), leading to imbalance and UAF. (CVE-2025-38180)
- 已解決 Linux 核心中的下列弱點：posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() If an exiting non-autoreaping task has already passed exit_notify() and calls handle_posix_cpu_timers() from IRQ, it can be reaped by its parent or debugger right after unlock_task_sighand(). If a concurrent posix_cpu_timer_del() runs at that moment, it won't be able to detect timer->it.cpu.firing != 0: cpu_timer_task_rcu() and/or lock_task_sighand() will fail. Add the tsk->exit_state check into run_posix_cpu_timers() to fix this. This fix is not needed if CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y, because exit_task_work() is called before exit_notify(). But the check still makes sense, task_work_add(&tsk->posix_cputimers_work.work) will fail anyway in this case.
(CVE-2025-38352)
請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。
解決方案
根據 TuxCare 公告 CENTOS6：CLSA-2025：1758010245 中的指引更新受影響的套件。另請參閱
Plugin 詳細資訊
嚴重性: High
ID: 360785
檔案名稱: tuxcare_centos_6_CLSA-2025-1758010245.nasl
版本: 1.2
類型: Local
代理程式: unix
已發布: 2026/10/1
已更新: 2026/10/2
支援的感應器: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
風險資訊
VPR
風險因素: Critical
分數: 9.4
百分位數: 99.82
Vendor
Vendor Severity: Important
CVSS v2
風險因素: Medium
基本分數: 6.8
時間性分數: 5.9
媒介: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS 評分資料來源: CVE-2025-38180
CVSS v3
風險因素: High
基本分數: 7.8
時間性分數: 7.5
媒介: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
時間媒介: CVSS:3.0/E:H/RL:O/RC:C
弱點資訊
必要的 KB 項目: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party
可被惡意程式利用: true
可輕鬆利用: Exploits are available
修補程式發佈日期: 2025/9/16
弱點發布日期: 2025/2/12
CISA 已知遭惡意利用弱點到期日: 2025/9/25
參考資訊
CVE: CVE-2025-38177, CVE-2025-38180, CVE-2025-38352
CLSA: 2025:1758010245