CVE-2018-14646: Null Pointer Dereference
First published: Tue Sep 18 2018(Updated: )
The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.15 | 4.15 |
| Linux Kernel | <=4.14 | |
| Linux Kernel | =4.15-rc1 | |
| Linux Kernel | =4.15-rc2 | |
| Linux Kernel | =4.15-rc3 | |
| Linux Kernel | =4.15-rc4 | |
| Linux Kernel | =4.15-rc5 | |
| Linux Kernel | =4.15-rc6 | |
| Linux Kernel | =4.15-rc7 | |
| redhat enterprise Linux desktop | =7.0 | |
| redhat enterprise Linux server | =7.0 | |
| redhat enterprise Linux server aus | =7.6 | |
| redhat enterprise Linux server eus | =7.5 | |
| redhat enterprise Linux server eus | =7.6 | |
| redhat enterprise Linux server tus | =7.6 | |
| redhat enterprise Linux workstation | =7.0 |
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Reference Links
- https://access.redhat.com/errata/RHSA-2018:3651
- https://access.redhat.com/errata/RHSA-2018:3666
- https://access.redhat.com/errata/RHSA-2018:3843
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14646
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f428fe4a04cc339166c8bbd489789760de3a0cee
- https://marc.info/?l=linux-netdev&m=151500466401174&w=2
- https://bugzilla.redhat.com/show_bug.cgi?id=1630124
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- canonical/linux kernel
- version/linux kernel/4.14
- version/linux kernel/4.15-rc1
- version/linux kernel/4.15-rc2
- version/linux kernel/4.15-rc3
- version/linux kernel/4.15-rc4
- version/linux kernel/4.15-rc5
- version/linux kernel/4.15-rc6
- version/linux kernel/4.15-rc7
- vendor/redhat
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- version/redhat enterprise linux desktop/7.0
- canonical/redhat enterprise linux server
- version/redhat enterprise linux server/7.0
- canonical/redhat enterprise linux server aus
- version/redhat enterprise linux server aus/7.6
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- version/redhat enterprise linux server eus/7.5
- version/redhat enterprise linux server eus/7.6
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- version/redhat enterprise linux server tus/7.6
- canonical/redhat enterprise linux workstation
- version/redhat enterprise linux workstation/7.0