CVE-2018-10881: canonical ubuntu_linux Out-of-bounds Write
Vulnerability summary
CVE-2018-10881 is a medium (CVSS 5.5) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 55.5% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 4.2, physical access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 25 · Related 17Timeline
- 26-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bound access in ext4_get_group_info function, a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image.
CVSS metrics
5 scores · 4 sources · 2 versions- CVE.orgCNA4.2MediumCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated4.2MediumCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.77%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.77% 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
1 foundExploit Reference (bugzilla.kernel.org)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
- 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.
Affected systems
Known conditions: physical access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu22 products
- linux< 3.13.0-157.207 | < 4.4.0-134.160 | < 4.15.0-33.36
- linux-aws< 4.4.0-1028.31 | < 4.4.0-1066.76 | < 4.15.0-1020.20
- linux-azure< 4.15.0-1022.22~16.04.1 | < 4.15.0-1022.23
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
Redhat5 products
Debian2 products
- linux< 4.17.3-1
- debian_linuxEOL8.0
[unknown]1 product
- kerneln/a
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04
Linux1 product
- linux_kernel< 4.17.6
6 vendors · 32 products
References
24 links- bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10881X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2018/07/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory
Show all 24 references
- bugzilla.kernel.org/show_bug.cgi?id=200015X Refsource CONFIRMExploitIssue TrackingVendor AdvisoryREPORT