CVE-2019-5489
published 2019-01-07CVE-2019-5489: 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…
PriorityP425medium5.5CVSS 3.0
AVLACLPRLUINSUCHINAN
EPSS
0.77%
52.2th percentile
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.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 4.19.37-4 (bookworm) | linux 4.19.37-4 (bookworm) |
| linux | linux_kernel | <= 4.19.13 | — |
| linux | linux_kernel | >= 0 < 4.19.37-4 | 4.19.37-4 |
| linux | linux_kernel | >= 0 < 4.19.37-4 | 4.19.37-4 |
| linux | linux_kernel | >= 0 < 4.19.37-4 | 4.19.37-4 |
| linux | linux_kernel | >= 0 < 4.19.37-4 | 4.19.37-4 |
CVSS provenance
nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_oracle3.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-384f-f7vj-vfh4: The mincore() implementation in mm/mincore
ghsa_unreviewed·2022-05-13
CVE-2019-5489 [MEDIUM] CWE-319 GHSA-384f-f7vj-vfh4: The mincore() implementation in mm/mincore
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.
OSV
CVE-2019-5489: The mincore() implementation in mm/mincore
osv·2019-01-07·CVSS 5.5
CVE-2019-5489 [MEDIUM] CVE-2019-5489: The mincore() implementation in mm/mincore
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.
Oracle
Oracle Oracle Systems Risk Matrix: Kernel — CVE-2019-5489
vendor_oracle·2020-07-15·CVSS 3.5
CVE-2019-5489 [MEDIUM] Oracle Oracle Systems Risk Matrix: Kernel — CVE-2019-5489
Oracle Oracle Systems Risk Matrix: Kernel vulnerability
CVE: CVE-2019-5489
CVSS: 3.5
Protocol: Multiple
Remote exploit: No
Affected versions: Network
Advisory: cpujul2020 (JUL 2020)
Red Hat
Kernel: page cache side channel attacks
vendor_redhat·2019-01-06·CVSS 5.5
CVE-2019-5489 [MEDIUM] CWE-200 Kernel: page cache side channel attacks
Kernel: page cache side channel attacks
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.
A new software page cache side channel attack scenario was discovered in operating systems that implement the very common 'page cache' caching mechanism. A malicious user/process could use 'in memory' page-cache knowledge to infer access timings to shared memory and gain knowledge which can be used to reduce effectiveness of c
Debian
CVE-2019-5489: linux - The mincore() implementation in mm/mincore.c in the Linux kernel through 4.19.13...
vendor_debian·2019·CVSS 5.5
CVE-2019-5489 [MEDIUM] CVE-2019-5489: linux - The mincore() implementation in mm/mincore.c in the Linux kernel through 4.19.13...
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.
Scope: local
bookworm: resolved (fixed in 4.19.37-4)
bullseye: resolved (fixed in 4.19.37-4)
forky: resolved (fixed in 4.19.37-4)
sid: resolved (fixed in 4.19.37-4)
trixie: resolved (fixed in 4.19.37-4)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-5489 Kernel: page cache side channel attacks
bugzilla·2019-01-07·CVSS 5.5
CVE-2019-5489 [MEDIUM] CVE-2019-5489 Kernel: page cache side channel attacks
CVE-2019-5489 Kernel: page cache side channel attacks
A new software page cache side channel attack scenario was discovered
in operating systems that implement the very common 'page cache' caching mechanism. A page cache stores memory pages of running programs and/or libraries in use on a system to improve performance.
A malicious user/process could use 'in memory' page-cache knowledge to infer access timings to shared memory and gain knowledge which can be used to :
- Reduce effectiveness of cryptographic strength by monitoring algorithmic behaviour.
- Infer access patterns of memory to determine code paths taken (ie, observe process execution patterns)
- Exfiltrate data to a blinded attacker through page-granularity access times as a side-channel.
Upstream patch:
-> https://git.kerne
Bugzilla
CVE-2019-5489 kernel: page cache side channel attacks [fedora-all]
bugzilla·2019-01-07·CVSS 5.5
CVE-2019-5489 [MEDIUM] CVE-2019-5489 kernel: page cache side channel attacks [fedora-all]
CVE-2019-5489 kernel: page cache side channel attacks [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora.
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=574823bfab82d9d8fa47f422778043fbb4b4f50ehttp://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.htmlhttp://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-pagecache-enhttp://www.securityfocus.com/bid/106478https://access.redhat.com/errata/RHSA-2019:2029https://access.redhat.com/errata/RHSA-2019:2043https://access.redhat.com/errata/RHSA-2019:2473https://access.redhat.com/errata/RHSA-2019:2808https://access.redhat.com/errata/RHSA-2019:2809https://access.redhat.com/errata/RHSA-2019:2837https://access.redhat.com/errata/RHSA-2019:3309https://access.redhat.com/errata/RHSA-2019:3517https://access.redhat.com/errata/RHSA-2019:3967https://access.redhat.com/errata/RHSA-2019:4056https://access.redhat.com/errata/RHSA-2019:4057https://access.redhat.com/errata/RHSA-2019:4058https://access.redhat.com/errata/RHSA-2019:4159https://access.redhat.com/errata/RHSA-2019:4164https://access.redhat.com/errata/RHSA-2019:4255https://access.redhat.com/errata/RHSA-2020:0204https://arxiv.org/abs/1901.01161https://bugzilla.suse.com/show_bug.cgi?id=1120843https://github.com/torvalds/linux/commit/574823bfab82d9d8fa47f422778043fbb4b4f50ehttps://lists.debian.org/debian-lts-announce/2019/06/msg00010.htmlhttps://lists.debian.org/debian-lts-announce/2019/06/msg00011.htmlhttps://seclists.org/bugtraq/2019/Jun/26https://security.netapp.com/advisory/ntap-20190307-0001/https://www.debian.org/security/2019/dsa-4465https://www.oracle.com/security-alerts/cpujul2020.htmlhttps://www.theregister.co.uk/2019/01/05/boffins_beat_page_cache/http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=574823bfab82d9d8fa47f422778043fbb4b4f50ehttp://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.htmlhttp://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-pagecache-enhttp://www.securityfocus.com/bid/106478https://access.redhat.com/errata/RHSA-2019:2029https://access.redhat.com/errata/RHSA-2019:2043https://access.redhat.com/errata/RHSA-2019:2473https://access.redhat.com/errata/RHSA-2019:2808https://access.redhat.com/errata/RHSA-2019:2809https://access.redhat.com/errata/RHSA-2019:2837https://access.redhat.com/errata/RHSA-2019:3309https://access.redhat.com/errata/RHSA-2019:3517https://access.redhat.com/errata/RHSA-2019:3967https://access.redhat.com/errata/RHSA-2019:4056https://access.redhat.com/errata/RHSA-2019:4057https://access.redhat.com/errata/RHSA-2019:4058https://access.redhat.com/errata/RHSA-2019:4159https://access.redhat.com/errata/RHSA-2019:4164https://access.redhat.com/errata/RHSA-2019:4255https://access.redhat.com/errata/RHSA-2020:0204https://arxiv.org/abs/1901.01161https://bugzilla.suse.com/show_bug.cgi?id=1120843https://github.com/torvalds/linux/commit/574823bfab82d9d8fa47f422778043fbb4b4f50ehttps://lists.debian.org/debian-lts-announce/2019/06/msg00010.htmlhttps://lists.debian.org/debian-lts-announce/2019/06/msg00011.htmlhttps://seclists.org/bugtraq/2019/Jun/26https://security.netapp.com/advisory/ntap-20190307-0001/https://www.debian.org/security/2019/dsa-4465https://www.oracle.com/security-alerts/cpujul2020.htmlhttps://www.theregister.co.uk/2019/01/05/boffins_beat_page_cache/
2019-01-07
Published