VulnerabilityModified
CVE-2017-18017
The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other…
CRITICAL 9.8EPSS 52.8%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 52.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 52.84% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel · debian/debian linux · arista/eos · f5/arx · suse/caas platform · suse/linux enterprise debuginfo · suse/linux enterprise module for public cloud · suse/linux enterprise point of sale · suse/openstack cloud · opensuse/leap · suse/linux enterprise desktop · suse/linux enterprise high availability · suse/linux enterprise high availability extension · suse/linux enterprise live patching · suse/linux enterprise real time extension · suse/linux enterprise server · suse/linux enterprise software development kit · suse/linux enterprise workstation extension · openstack/cloud magnum orchestration · canonical/ubuntu linux · +9 more
- Source
- cve@mitre.org
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd991d8f4925cb3f081901Patch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00008.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00013.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00015.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00038.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00047.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00030.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00067.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00070.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00072.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2018-04/msg00014.htmlMailing List, Third Party Advisory
- http://patchwork.ozlabs.org/patch/746618/Patch, Third Party Advisory
- http://www.securityfocus.com/bid/102367Broken Link, Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-3583-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3583-2Third 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-2018:1130Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1170Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1319Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1737Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1739765Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/2638fd0f92d4397884fd991d8f4925cb3f081901Patch, Third Party Advisory
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.htmlMailing List, Third Party Advisory
- https://lkml.org/lkml/2017/4/2/13Third Party Advisory
- https://support.f5.com/csp/article/K18352029Third Party Advisory
- https://usn.ubuntu.com/3583-1/Third Party Advisory
- https://usn.ubuntu.com/3583-2/Third Party Advisory
- https://www.arista.com/en/support/advisories-notices/security-advisories/4577-security-advisory-34Mitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.