Use After Free Affecting kernel-bootwrapper package, versions <0:3.10.0-693.el7
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Test your applications- Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4692793
- published 26 Jul 2021
- disclosed 9 May 2017
Introduced: 9 May 2017
CVE-2017-8890 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-693.el7 or higher.
This issue was patched in RHSA-2017:1842.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
The inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c in the Linux kernel through 4.10.15 allows attackers to cause a denial of service (double free) or possibly have unspecified other impact by leveraging use of the accept system call.
References
- http://www.securityfocus.com/bid/98562
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=657831ffc38e30092a2d5f03d385d710eb88b09a
- https://github.com/torvalds/linux/commit/657831ffc38e30092a2d5f03d385d710eb88b09a
- https://source.android.com/security/bulletin/2017-09-01
- https://access.redhat.com/security/cve/CVE-2017-8890
- http://www.debian.org/security/2017/dsa-3886
- https://access.redhat.com/errata/RHSA-2017:1842