ALT Linux Team

Package kernel-image-un-def update in sisyphus on 2017-12-11

ALT-PU-2017-2788-1

Package kernel-image-un-def updated to version 4.14.5-alt1 for branch sisyphus in task 196412.

Closed vulnerabilities

Published: 2017-12-07
Modified: 2025-04-20

CVE-2017-17448

net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations, which allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces.

Severity: MEDIUM (4.6) Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Severity: HIGH (7.8) Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References:
Published: 2017-12-07
Modified: 2025-04-20

CVE-2017-17449

The __netlink_deliver_tap_skb function in net/netlink/af_netlink.c in the Linux kernel through 4.14.4, when CONFIG_NLMON is enabled, does not restrict observations of Netlink messages to a single net namespace, which allows local users to obtain sensitive information by leveraging the CAP_NET_ADMIN capability to sniff an nlmon interface for all Netlink activity on the system.

Severity: LOW (1.9) Vector: AV:L/AC:M/Au:N/C:P/I:N/A:N
Severity: MEDIUM (4.7) Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
References:
Published: 2017-12-07
Modified: 2025-04-20

CVE-2017-17450

net/netfilter/xt_osf.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for add_callback and remove_callback operations, which allows local users to bypass intended access restrictions because the xt_osf_fingers data structure is shared across all net namespaces.

Severity: MEDIUM (4.6) Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Severity: HIGH (7.8) Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References:
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Version: 2.1.2
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