CVE-2017-18079: canonical ubuntu_linux NULL Pointer Dereference
Vulnerability summary
CVE-2017-18079 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 36.1% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 6Timeline
- 29-01-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
drivers/input/serio/i8042.c in the Linux kernel before 4.12.4 allows attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact because the port->exists value can change after it is validated.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.42%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.42% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not 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.
Ubuntu14 products
- linux< 3.13.0-149.199 | < 4.4.0-93.116
- linux-aws< 4.4.0-1032.41
- linux-azure< 4.13.0-1005.7
- linux-azure-fdeAll versions (No fix recorded)
- linux-gcp< 4.13.0-1002.5
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04
Debian1 product
- linux< 4.12.6-1
Linux1 product
- linux_kernel< 3.2.94 | ≥ 3.3, < 3.16.49 | ≥ 3.17, < 3.18.63 | ≥ 3.19, < 4.1.44 | ≥ 4.2, < 4.4.79 | ≥ 4.5, < 4.9.40 | ≥ 4.10, < 4.12.4
4 vendors · 17 products
References
11 links- github.com/torvalds/linux/commit/340d394a789518018f834ff70f7534fc463d3226X Refsource CONFIRMPatchREPORT
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.4X Refsource CONFIRMIssue TrackingPatchRelease NotesREPORT