CVE-2018-11506: canonical ubuntu_linux Out-of-bounds Write
Vulnerability summary
CVE-2018-11506 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 6 · Related 3Timeline
- 28-05-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The sr_do_ioctl function in drivers/scsi/sr_ioctl.c in the Linux kernel through 4.16.12 allows local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact because sense buffers have different sizes at the CDROM layer and the SCSI layer, as demonstrated by a CDROMREADMODE2 ioctl call.
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
0.39%
Chance of exploitation in the next 30 days
Percentile
32%
Versus all other CVEs
30-day change
0.00 pp
From 0.39% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu8 products
- linux< 4.15.0-33.36
- linux-aws< 4.15.0-1020.20
- linux-azure< 4.15.0-1022.22~16.04.1 | < 4.15.0-1022.23
- linux-gcp< 4.15.0-1018.19~16.04.2 | < 4.15.0-1018.19
- linux-hwe< 4.15.0-33.36~16.04.1
Debian2 products
- linux< 4.16.16-1
- debian_linuxEOL8.0
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04
Linux1 product
- linux_kernel≥ 4.11, < 4.14.45 | ≥ 4.15, < 4.16.13
4 vendors · 12 products
References
16 links
lists.debian.org/debian-lts-announce/2018/07/msg00015.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2018/07/msg00016.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.debian.org/debian-lts-announce/2018/07/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory
- github.com/torvalds/linux/commit/f7068114d45ec55996b9040e98111afa56e010feX Refsource MISCPatchREPORT