Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 4.19.37-4 | — |
| Debian 13 | linux | 4.19.37-4 | — |
| Debian 12 | linux | 4.19.37-4 | — |
| Debian 9 | linux | 4.9.168-1+deb9u3 | DSA-4465-1 |
| Debian 8 | linux | 3.16.68-2 | DLA-1823-1 |
| Debian 8 | linux-4.9 | 4.9.168-1+deb9u3~deb8u1 | DLA-1824-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | linux-vmware | No fix yet | — |
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +2 | No fix yet | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-60.67 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1047.49 | — |
| Ubuntu 18.04 LTS | linux-azure | 5.0.0-1014.14~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp | 4.15.0-1042.45 | — |
| Ubuntu 18.04 LTS | linux-gke-4.15 | 4.15.0-1041.43 | — |
| Ubuntu 18.04 LTS | linux-gke-5.0 | 5.0.0-1013.13~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe | 5.0.0-25.26~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1043.43 | — |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1056.65 | — |
| Ubuntu 18.04 LTS | linux-oem-osp1 | 5.0.0-1018.20 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1022.25 | — |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1044.47 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1062.69 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux | 4.4.0-157.185 | — |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1090.101 | — |
| Ubuntu 16.04 LTS | linux-aws-hwe | 4.15.0-1047.49~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1056.61 | — |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1041.43 | — |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-60.67~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1052.59 | — |
| Ubuntu 16.04 LTS | linux-oracle | 4.15.0-1022.25~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1117.126 | — |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1121.127 | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-aws-fips +2 | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2018.18 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2006.7 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1015.20 | — |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1054.58 | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1059.64~14.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-164.192~14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-147.rt24.93.el8 | RHSA-2019:3309 |
| RHEL 8 | perf +26 | 4.18.0-147.el8 | RHSA-2019:3517 |
| RHEL 7 | kernel +15 | 3.10.0-1062.el7 | RHSA-2019:2809, RHSA-2019:2029 |
| RHEL 7 | kernel-alt | 4.14.0-115.12.1.el7a | RHSA-2019:2809 |
| RHEL 7 | kernel-rt +10 | 3.10.0-1062.rt56.1022.el7 | RHSA-2019:2043 |
| RHEL 7 | perf +3 | 3.10.0-957.35.1.el7 | RHSA-2019:2837, RHSA-2019:2809, RHSA-2019:2029 |
| RHEL 6 | perf +15 | 2.6.32-754.18.2.el6 | RHSA-2019:2473 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.0 E4S | perf +18 | 4.18.0-80.15.1.el8_0 | RHSA-2020:0204 |
| RHEL 7.6 EUS | perf +19 | 3.10.0-957.35.1.el7 | RHSA-2019:2837 |
| RHEL 7.5 EUS | perf +18 | 3.10.0-862.44.2.el7 | RHSA-2019:3967 |
| RHEL 7.4 TUS | perf +12 | 3.10.0-693.61.1.el7 | RHSA-2019:4058 |
| RHEL 7.4 E4S | perf +14 | 3.10.0-693.61.1.el7 | RHSA-2019:4058 |
| RHEL 7.4 AUS | perf +12 | 3.10.0-693.61.1.el7 | RHSA-2019:4058 |
| RHEL 7.3 TUS | perf +12 | 3.10.0-514.71.1.el7 | RHSA-2019:4159 |
| RHEL 7.3 E4S | perf +14 | 3.10.0-514.71.1.el7 | RHSA-2019:4159 |
| RHEL 7.3 AUS | perf +12 | 3.10.0-514.71.1.el7 | RHSA-2019:4159 |
| RHEL 7.2 TUS | perf +12 | 3.10.0-327.83.1.el7 | RHSA-2019:4164 |
| RHEL 7.2 E4S | perf +12 | 3.10.0-327.83.1.el7 | RHSA-2019:4164 |
| RHEL 7.2 AUS | perf +12 | 3.10.0-327.83.1.el7 | RHSA-2019:4164 |
| RHEL 6.6 AUS | perf +10 | 2.6.32-504.82.1.el6 | RHSA-2019:4255 |
| RHEL 6.5 AUS | perf +10 | 2.6.32-431.97.1.el6 | RHSA-2019:4056 |
| RHEL 5 ELS | kernel +12 | 2.6.18-439.el5 | RHSA-2019:2808 |
| Red Hat MRG 2 | kernel-rt +10 | 1:3.10.0-693.61.1.rt56.656.el6rt | RHSA-2019:4057 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-197.4.1 | SUSE-SU-2019:1550-1 |
| SLES 15 | kernel-azure +2 | 4.12.14-5.30.1 | SUSE-SU-2019:1535-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.22.1 | SUSE-SU-2019:1529-1 |
| SLES 12 SP4 | kernel-azure +2 | 4.12.14-6.15.2 | SUSE-SU-2019:1536-1 |
| SLES 12 SP4 | kernel-docs +4 | 4.12.14-95.19.1 | SUSE-SU-2019:1530-1 |
| SLES 12 SP3 | kernel-azure +2 | 4.4.180-4.31.1 | SUSE-SU-2019:1527-1 |
| SLES 12 SP3 | kernel-docs +4 | 4.4.180-94.97.1 | SUSE-SU-2019:1532-1 |
| SLES 12 SP2 | kernel-syms +2 | 4.4.121-92.114.1 | SUSE-SU-2019:1534-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_30 | 1-3.5.1 | SUSE-SU-2019:1534-1 |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | kernel-xen +3 | 3.12.74-60.64.115.1 | SUSE-SU-2019:1533-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_34 | 1-2.5.1 | SUSE-SU-2019:1533-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.61-52.154.1 | SUSE-SU-2019:1692-1, SUSE-SU-2019:1533-1 |
| SLES 12 | kgraft-patch-SLE12_Update_40 | 1-1.5.1 | SUSE-SU-2019:1692-1 |
| SLES 11 SP4 | kernel-ec2 +6 | 3.0.101-108.95.2 | SUSE-SU-2019:14089-1 |
| SLES 11 SP4 | kernel-syms +1 | 3.0.101-108.95.1 | SUSE-SU-2019:14089-1 |
| SLES for SAP 12 SP4 | kernel-azure +2 | 4.12.14-6.15.2 | SUSE-SU-2019:1536-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.19.1 | SUSE-SU-2019:1530-1 |
| SLES for SAP 12 SP3 | kernel-azure +2 | 4.4.180-4.31.1 | SUSE-SU-2019:1527-1 |
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.180-94.97.1 | SUSE-SU-2019:1532-1 |
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.121-92.114.1 | SUSE-SU-2019:1534-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_30 | 1-3.5.1 | SUSE-SU-2019:1534-1 |
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.115.1 | SUSE-SU-2019:1533-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_34 | 1-2.5.1 | SUSE-SU-2019:1533-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.4.1 | SUSE-SU-2019:1550-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_1 | 1-3.3.1 | SUSE-SU-2019:1550-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.22.1 | SUSE-SU-2019:1529-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_11 | 1-1.5.1 | SUSE-SU-2019:1529-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_5 | 1-6.3.1 | SUSE-SU-2019:1530-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_26 | 1-4.3.3 | SUSE-SU-2019:1532-1 |
| SUSE Real Time Module 15 SP1 | kernel-rt +3 | 4.12.14-14.8.1 | SUSE-SU-2019:2430-1 |
| SUSE OpenStack Cloud 7 | kernel-syms +2 | 4.4.121-92.114.1 | SUSE-SU-2019:1534-1 |
| SUSE OpenStack Cloud 7 | kgraft-patch-SLE12-SP2_Update_30 | 1-3.5.1 | SUSE-SU-2019:1534-1 |
| SUSE Enterprise Storage 4 | kernel-syms +2 | 4.4.121-92.114.1 | SUSE-SU-2019:1534-1 |
| SUSE Enterprise Storage 4 | kgraft-patch-SLE12-SP2_Update_30 | 1-3.5.1 | SUSE-SU-2019:1534-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | kernel-docs +8 | 4.12.14-lp151.28.4.1 | openSUSE-SU-2019:1479-1 |
| openSUSE Leap 15.0 | kernel-docs +8 | 4.12.14-lp150.12.64.1 | openSUSE-SU-2019:1579-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | perf +8 | 4.14.121-109.96.amzn2 | ALAS2-2019-1214 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-147.el8 | ELSA-2019-3517 |
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.24.5.el7uek | ELSA-2023-12232, ELSA-2019-4541, ELSA-2019-4528 |
| Oracle Linux 7 | kernel-uek-tools +3 | 4.14.35-1844.2.5.el7uek | ELSA-2019-4541 |
| Oracle Linux 7 | perf +12 | 3.10.0-1062.el7 | ELSA-2019-4541, ELSA-2019-2029 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
mmxsrup/CVE-2019-5489 ★ 10 · Dec 6, 2019
Page Cache Side Channel Attacks (CVE-2019-5489) proof of concept for Linux
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 40
- RHSA-2019:3517 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2019:3967 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jul 8, 2026
- RHSA-2019:2043 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2019:2029 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2020:0204 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:4255 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:4164 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:4159 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:4058 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:4057 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:4056 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:2837 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:2808 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:2809 Red Hat Security Advisory: kernel-alt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:2473 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:3309 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-4465-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1824-1 linux-4.9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1823-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:1534-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:14089-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1536-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1532-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1535-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1527-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1479-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1579-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1550-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1692-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1529-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2430-1 Security update for kernel-source-rt SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1530-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1533-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0858 Linux Kernel: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Apr 10, 2023
- ELSA-2023-12232 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 4, 2023
- ELSA-2019-3517 Important: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 14, 2019
- ELSA-2019-2029 Important: kernel security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 13, 2019
- ALAS2-2019-1214 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 22, 2019
- ELSA-2019-4541 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 12, 2019
- ELSA-2019-4528 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 31, 2019
References
- 106478 vdb-entry
- openSUSE-SU-2019:1479 vendor-advisory
- DSA-4465 vendor-advisory
- [debian-lts-announce] 20190617 [SECURITY] [DLA 1823-1] linux security update mailing-list
- [debian-lts-announce] 20190618 [SECURITY] [DLA 1824-1] linux-4.9 security update mailing-list
- openSUSE-SU-2019:1570 vendor-advisory
- 20190618 [SECURITY] [DSA 4465-1] linux security update mailing-list
- openSUSE-SU-2019:1579 vendor-advisory
- RHSA-2019:2043 vendor-advisory
- RHSA-2019:2029 vendor-advisory
- RHSA-2019:2473 vendor-advisory
- RHSA-2019:2808 vendor-advisory
- RHSA-2019:2837 vendor-advisory
- RHSA-2019:2809 vendor-advisory
- RHSA-2019:3309 vendor-advisory
- RHSA-2019:3517 vendor-advisory
- RHSA-2019:3967 vendor-advisory
- RHSA-2019:4058 vendor-advisory
- RHSA-2019:4057 vendor-advisory
- RHSA-2019:4056 vendor-advisory
- RHSA-2019:4159 vendor-advisory
- RHSA-2019:4164 vendor-advisory
- RHSA-2019:4255 vendor-advisory
- RHSA-2020:0204 vendor-advisory
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.theregister.co.uk/2019/01/05/boffins_beat_page_cache/
- https://bugzilla.suse.com/show_bug.cgi?id=1120843
- https://github.com/torvalds/linux/commit/574823bfab82d9d8fa47f422778043fbb4b4f50e
- https://arxiv.org/abs/1901.01161
- https://security.netapp.com/advisory/ntap-20190307-0001/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=574823bfab82d9d8fa47f422778043fbb4b4f50e
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-pagecache-en