CVE-2019-5489: Infoleak
First published: Sun Jan 06 2019(Updated: )
The mincore() implementation in mm/mincore.c in the Linux kernel through 4.19.13 allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <0:2.6.18-439.el5 | 0:2.6.18-439.el5 |
| redhat/kernel | <0:2.6.32-754.18.2.el6 | 0:2.6.32-754.18.2.el6 |
| redhat/kernel | <0:2.6.32-431.97.1.el6 | 0:2.6.32-431.97.1.el6 |
| redhat/kernel | <0:2.6.32-504.82.1.el6 | 0:2.6.32-504.82.1.el6 |
| redhat/kernel-rt | <0:3.10.0-1062.rt56.1022.el7 | 0:3.10.0-1062.rt56.1022.el7 |
| redhat/kernel | <0:3.10.0-1062.el7 | 0:3.10.0-1062.el7 |
| redhat/kernel-alt | <0:4.14.0-115.12.1.el7a | 0:4.14.0-115.12.1.el7a |
| redhat/kernel | <0:3.10.0-327.83.1.el7 | 0:3.10.0-327.83.1.el7 |
| redhat/kernel | <0:3.10.0-514.71.1.el7 | 0:3.10.0-514.71.1.el7 |
| redhat/kernel | <0:3.10.0-693.61.1.el7 | 0:3.10.0-693.61.1.el7 |
| redhat/kernel | <0:3.10.0-862.44.2.el7 | 0:3.10.0-862.44.2.el7 |
| redhat/kernel | <0:3.10.0-957.35.1.el7 | 0:3.10.0-957.35.1.el7 |
| redhat/kernel-rt | <0:4.18.0-147.rt24.93.el8 | 0:4.18.0-147.rt24.93.el8 |
| redhat/kernel | <0:4.18.0-147.el8 | 0:4.18.0-147.el8 |
| redhat/kernel | <0:4.18.0-80.15.1.el8_0 | 0:4.18.0-80.15.1.el8_0 |
| redhat/kernel-rt | <1:3.10.0-693.61.1.rt56.656.el6 | 1:3.10.0-693.61.1.rt56.656.el6 |
| Linux Linux kernel | <=4.19.13 | |
| Netapp Active Iq Performance Analytics Services | ||
| Netapp Element Software Management Node | ||
| debian/linux | 4.19.249-2 4.19.289-2 5.10.197-1 5.10.191-1 6.1.66-1 6.1.52-1 6.5.13-1 6.6.8-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=574823bfab82d9d8fa47f422778043fbb4b4f50e
- 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.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-pagecache-en
- http://www.securityfocus.com/bid/106478
- https://access.redhat.com/errata/RHSA-2019:2029
- https://access.redhat.com/errata/RHSA-2019:2043
- https://access.redhat.com/errata/RHSA-2019:2473
- https://access.redhat.com/errata/RHSA-2019:2808
- https://access.redhat.com/errata/RHSA-2019:2809
- https://access.redhat.com/errata/RHSA-2019:2837
- https://access.redhat.com/errata/RHSA-2019:3309
- https://access.redhat.com/errata/RHSA-2019:3517
- https://access.redhat.com/errata/RHSA-2019:3967
- https://access.redhat.com/errata/RHSA-2019:4056
- https://access.redhat.com/errata/RHSA-2019:4057
- https://access.redhat.com/errata/RHSA-2019:4058
- https://access.redhat.com/errata/RHSA-2019:4159
- https://access.redhat.com/errata/RHSA-2019:4164
- https://access.redhat.com/errata/RHSA-2019:4255
- https://access.redhat.com/errata/RHSA-2020:0204
- https://arxiv.org/abs/1901.01161
- https://bugzilla.suse.com/show_bug.cgi?id=1120843
- https://github.com/torvalds/linux/commit/574823bfab82d9d8fa47f422778043fbb4b4f50e
- https://lists.debian.org/debian-lts-announce/2019/06/msg00010.html
- https://lists.debian.org/debian-lts-announce/2019/06/msg00011.html
- https://seclists.org/bugtraq/2019/Jun/26
- https://security.netapp.com/advisory/ntap-20190307-0001/
- https://www.debian.org/security/2019/dsa-4465
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.theregister.co.uk/2019/01/05/boffins_beat_page_cache/
- https://git.kernel.org/linus/574823bfab82d9d8fa47f422778043fbb4b4f50e
- https://www.openwall.com/lists/oss-security/2019/01/07/1
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1664111
- https://access.redhat.com/security/cve/cve-2019-5489
- https://bugzilla.redhat.com/show_bug.cgi?id=1664110
- https://www.cve.org/CVERecord?id=CVE-2019-5489 https://nvd.nist.gov/vuln/detail/CVE-2019-5489
- https://security-tracker.debian.org/tracker/CVE-2019-5489
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2019-5489?
CVE-2019-5489 refers to a vulnerability discovered in the Linux kernel through version 4.19.13 that allows local attackers to infer shared memory access timings through a software page cache side channel attack.
What is the severity of CVE-2019-5489?
The severity of CVE-2019-5489 is rated as high with a CVSS score of 7.1.
Which operating systems are affected by CVE-2019-5489?
The Linux operating systems implementing the 'page cache' caching mechanism and using certain versions of the kernel are affected by this vulnerability.
How can a malicious user/process exploit CVE-2019-5489?
A malicious user/process can exploit CVE-2019-5489 by using in-memory page-cache knowledge to infer access timings to shared memory and gain sensitive information.
Where can I find more information about CVE-2019-5489?
You can find more information about CVE-2019-5489 at the following references: [Link 1](https://security-tracker.debian.org/tracker/CVE-2019-5489), [Link 2](https://git.kernel.org/linus/574823bfab82d9d8fa47f422778043fbb4b4f50e), [Link 3](https://arxiv.org/abs/1901.01161)
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