NULL Pointer Dereference Affecting kernel-doc package, versions <0:3.10.0-1127.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-ORACLE7-KERNELDOC-2549512
- published10 Apr 2022
- disclosed17 May 2019
Introduced: 17 May 2019
CVE-2018-7191 (opens in a new tab)How to fix?
Upgrade Oracle:7 kernel-doc to version 0:3.10.0-1127.el7 or higher.
This issue was patched in ELSA-2020-1016.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice. This allows local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343.
References
- https://linux.oracle.com/cve/CVE-2018-7191.html
- https://linux.oracle.com/errata/ELSA-2019-4703.html
- https://linux.oracle.com/errata/ELSA-2019-4706.html
- https://linux.oracle.com/errata/ELSA-2019-4710.html
- https://linux.oracle.com/errata/ELSA-2020-1016.html
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
- http://www.securityfocus.com/bid/108380
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743792
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748846
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.14
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ad646c81b2182f7fa67ec0c8c825e0ee165696d
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c25f65fd1e42685f7ccd80e0621829c105785d9
- https://github.com/torvalds/linux/commit/0ad646c81b2182f7fa67ec0c8c825e0ee165696d
- https://github.com/torvalds/linux/commit/5c25f65fd1e42685f7ccd80e0621829c105785d9