CVE-2017-15129
A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11.
Does this matter?
Lower severity and a low EPSS score (0.36%). Track it; it rarely justifies an emergency change on its own.
Description
A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.
- CVSS 3.1
- 4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- linux/linux kernel · fedoraproject/fedora · canonical/ubuntu linux · redhat/enterprise linux · redhat/enterprise linux compute node eus · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux for ibm z systems · redhat/enterprise linux for ibm z systems eus · redhat/enterprise linux for power big endian · redhat/enterprise linux for power big endian eus · redhat/enterprise linux for power little endian eus · redhat/enterprise linux for real time · redhat/enterprise linux for real time for nfv · redhat/enterprise linux for scientific computing · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server tus · redhat/enterprise linux server update services for sap solutions · redhat/enterprise linux workstation
- Source
- secalert@redhat.com
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0Patch
- http://seclists.org/oss-sec/2018/q1/7Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/102485Broken Link
- https://access.redhat.com/errata/RHSA-2018:0654Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0676Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1062Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1946Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-15129Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1531174Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/21b5944350052d2583e82dd59b19a9ba94a007f0Patch
- https://marc.info/?l=linux-netdev&m=151370451121029&w=2Mailing List, Patch, Third Party Advisory
- https://marc.info/?t=151370468900001&r=1&w=2Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3617-1/Third Party Advisory
- https://usn.ubuntu.com/3617-2/Third Party Advisory
- https://usn.ubuntu.com/3617-3/Third Party Advisory
- https://usn.ubuntu.com/3619-1/Third Party Advisory
- https://usn.ubuntu.com/3619-2/Third Party Advisory
- https://usn.ubuntu.com/3632-1/Third Party Advisory
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11Release Notes
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0Patch
- http://seclists.org/oss-sec/2018/q1/7Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/102485Broken Link
- https://access.redhat.com/errata/RHSA-2018:0654Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0676Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1062Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1946Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-15129Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1531174Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/21b5944350052d2583e82dd59b19a9ba94a007f0Patch
- https://marc.info/?l=linux-netdev&m=151370451121029&w=2Mailing List, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.