CVE-2017-2618: debian debian_linux Off-by-one Error
Vulnerability summary
CVE-2017-2618 is a medium (CVSS 5.5) Off-by-one Error vulnerability in debian debian_linux. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 39.8% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 2Timeline
- 27-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.
CVSS metrics
5 scores · 4 sources · 2 versions- NVDNIST5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- 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
0.46%
Chance of exploitation in the next 30 days
Percentile
40%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.46% 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 cause- CWE-193Off-by-one ErrorA product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.
- CWE-682Incorrect CalculationThe product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu12 products
- linux< 3.13.0-126.175 | < 4.4.0-67.88
- linux-aws< 4.4.0-1009.18
- linux-azure-fdeAll versions (No fix recorded)
- linux-gkeAll versions (No fix recorded)
- linux-hwe< 4.10.0-32.36~16.04.1
Redhat6 products
- enterprise_linuxEOL7.0
- enterprise_linux_desktop7.0
- enterprise_linux_server7.0
- enterprise_linux_server_aus7.3 | 7.4
- enterprise_linux_server_eus7.3 | 7.4 | 7.5
Debian2 products
- linux< 4.9.10-1
- debian_linuxEOL8.0
Linux2 products
- kernel4.9.10
- linux_kernel< 4.9.10
4 vendors · 22 products
References
14 links
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618X Refsource CONFIRMIssue TrackingPatchThird Party Advisory