NULL Pointer Dereference Affecting bpftool package, versions <0:3.10.0-957.1.3.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-BPFTOOL-7967365
- published14 Sept 2024
- disclosed26 Nov 2018
Introduced: 26 Nov 2018
CVE-2018-14646 (opens in a new tab)How to fix?
Upgrade RHEL:7 bpftool to version 0:3.10.0-957.1.3.el7 or higher.
This issue was patched in RHSA-2018:3651.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- 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://access.redhat.com/security/cve/CVE-2018-14646
- https://access.redhat.com/errata/RHSA-2018:3651