CVE-2018-10877: canonical ubuntu_linux Out-of-bounds Read
Vulnerability summary
CVE-2018-10877 is a high (CVSS 7.3) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 2.22% chance of exploitation in the next 30 days, higher than 82.7% of scored vulnerabilities.
Not severe (CVSS 7.3, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 24 · Related 18Timeline
- 18-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Linux kernel ext4 filesystem is vulnerable to an out-of-bound access in the ext4_ext_drop_refs() function when operating on a crafted ext4 filesystem image.
CVSS metrics
5 scores · 4 sources · 2 versions- NVDNIST6.5MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.3HighCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
2.22%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.22% 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, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu23 products
- linux< 3.13.0-157.207 | < 4.4.0-134.160 | < 4.15.0-44.47
- linux-aws< 4.4.0-1028.31 | < 4.4.0-1066.76 | < 4.15.0-1032.34
- linux-aws-hwe< 4.15.0-1032.34~16.04.1
- linux-azure< 4.15.0-1037.39~14.04.2 | < 4.15.0-1037.39~16.04.1 | < 4.15.0-1037.39
- linux-azure-6.11All versions (No fix recorded)
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_kernel4.16 | 4.17
Redhat1 product
- enterprise_linuxEOL7.0
6 vendors · 29 products
References
24 links- bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10877X Refsource CONFIRMIssue TrackingPatchVendor Advisory
lists.debian.org/debian-lts-announce/2018/07/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory