CVE-2018-1068: canonical ubuntu_linux
Vulnerability summary
CVE-2018-1068 is a high (CVSS 7.2) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 38.9% of scored vulnerabilities.
Not severe (CVSS 6.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 71 · Related 59Timeline
- 16-03-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.45% 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 cause- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu22 products
- linux< 3.13.0-151.201 | < 4.4.0-127.153
- linux-aws< 4.4.0-1022.22 | < 4.4.0-1060.69
- linux-azure< 4.15.0-1013.13~16.04.2
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
Redhat7 products
- enterprise_linux_desktop7.0
- enterprise_linux_server7.0
- enterprise_linux_server_aus7.6
- enterprise_linux_server_eus7.5 | 7.6
- enterprise_linux_server_tus7.6
Debian2 products
- linux< 4.15.11-1
- debian_linuxEOL7.0 | 8.0 | 9.0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 17.10
Linux1 product
- linux_kernel< 3.2.102 | ≥ 3.3, < 3.16.57 | ≥ 3.17, < 3.18.100 | ≥ 3.19, < 4.1.51 | ≥ 4.2, < 4.4.122 | ≥ 4.5, < 4.9.88 | ≥ 4.10, < 4.14.27 | ≥ 4.15, < 4.15.10
Linux kernel organization, inc.1 product
- linux kernel≥ 4.0, < 5.0
6 vendors · 34 products
References
35 links- github.com/torvalds/linux/commit/b71812168571fa55e44cdd0254471331b9c4c4c6X Refsource CONFIRMPatchThird Party Advisory
Show all 35 references
- marc.info?l=linux-netdev&m=152025888924151&w=2Mailing ListX Refsource MLISTPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2018/05/msg00000.htmlMailing ListX Refsource MLISTThird Party Advisory