CVE-2019-18660: canonical ubuntu_linux
Vulnerability summary
CVE-2019-18660 is a medium (CVSS 4.7) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 54.5% of scored vulnerabilities.
Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 26 · Related 21Timeline
- 27-11-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs, aka CID-39e72bf96f58. This is related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · Red hatEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.74%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.74% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu33 products
- linuxAll versions (No fix recorded) | < 4.4.0-171.200 | < 4.15.0-74.84
- linux-aws< 4.4.0-1060.64 | < 4.4.0-1100.111 | < 4.15.0-1057.59
- linux-aws-5.0< 5.0.0-1023.26~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1057.59~16.04.1
Redhat30 products
- enterprise_linuxEOL6.0 | 7.0 | 8.0
- bpftool< 0:3.10.0-1062.21.1.el7
- bpftool-debuginfo< 0:3.10.0-1062.21.1.el7
- kernel< 0:3.10.0-1062.21.1.el7 | < 0:2.6.32-754.31.1.el6
- kernel-abi-whitelists< 0:3.10.0-1062.21.1.el7 | < 0:2.6.32-754.31.1.el6
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 19.04 | 19.10
Debian1 product
- linux< 5.3.15-1
Fedoraproject1 product
- fedoraEOL30 | 31
Linux1 product
- linux_kernel< 5.4.1
Opensuse1 product
- leapEOL15.1
7 vendors · 68 products
References
36 links- www.openwall.com/lists/oss-security/2019/11/27/1X Refsource MISCREPORTMailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2019/11/27/1Mailing ListX Refsource MLISTPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
Show all 36 references
- packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlX Refsource MISCThird Party AdvisoryVDB Entry
