CVE-2017-1000363: debian debian_linux Out-of-bounds Write
Vulnerability summary
CVE-2017-1000363 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 50.6% 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 14 · Related 9Timeline
- 13-07-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Linux drivers/char/lp.c Out-of-Bounds Write. Due to a missing bounds check, and the fact that parport_ptr integer is static, a 'secure boot' kernel command line adversary (can happen due to bootloader vulns, e.g. Google Nexus 6's CVE-2016-10277, where due to a vulnerability the adversary has partial control over the command line) can overflow the parport_nr array in the following code, by appending many (>LP_NO) 'lp=none' arguments to the command line.
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
0.64%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.64% 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, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu12 products
- linux< 3.13.0-123.172 | < 4.4.0-83.106
- linux-aws< 4.4.0-1022.31
- linux-azure-fdeAll versions (No fix recorded)
- linux-gke< 4.4.0-1018.18 | All versions (No fix recorded)
- linux-hwe< 4.10.0-32.36~16.04.1
Debian2 products
- linux< 4.9.30-1
- debian_linuxEOL8.0
Linux1 product
- linux_kernel≥ 2.6.12, < 3.2.91 | ≥ 3.3, < 3.10.106 | ≥ 3.11, < 3.16.46 | ≥ 3.17, < 3.18.55 | ≥ 3.19, < 4.1.41 | ≥ 4.2, < 4.4.70 | ≥ 4.5, < 4.9.30 | ≥ 4.10, < 4.11.3 | 4.12:rc1
3 vendors · 15 products
