CVE-2016-4581: canonical ubuntu_linux
CVSS: 5.5v3.0MediumModified
AliasesUBUNTU-CVE-2016-4581DEBIAN-CVE-2016-4581
Published 23-05-2016Last modified 06-08-2024
Vulnerability summary
CVE-2016-4581 is a medium (CVSS 5.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 44.9% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.0 (NVD)EPSS score
0.55%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 10 · Related 7Timeline
- 23-05-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
fs/pnode.c in the Linux kernel before 4.5.4 does not properly traverse a mount propagation tree in a certain case involving a slave mount, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted series of mount system calls.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- 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
Medium 4.9Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
0.55%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
0.00 pp
From 0.55% on 18-09-2026
18-09-202618-10-2026
EPSS score0.55%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu7 products
- linux< 3.13.0-87.133 | < 4.4.0-24.43
- linux-lts-utopic< 3.16.0-73.95~14.04.1
- linux-lts-vivid< 3.19.0-61.69~14.04.1
- linux-lts-wily< 4.2.0-38.45~14.04.1
- linux-lts-xenial< 4.4.0-24.43~14.04.1
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 15.10 | 16.04
Debian1 product
- linux< 4.5.4-1
Linux1 product
- linux_kernel≤ 4.5.3
Oracle1 product
- linuxEOL6
5 vendors · 11 products
References
36 links- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlX Refsource CONFIRMThird Party Advisory
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4X Refsource CONFIRM
Show all 36 references
- bugzilla.redhat.com/show_bug.cgi?id=1333712X Refsource CONFIRMIssue TrackingThird Party AdvisoryVDB Entry
- github.com/torvalds/linux/commit/5ec0811d30378ae104f250bfc9b3640242d81e3fX Refsource CONFIRMVendor Advisory
- git.kernel.org/cgit/…X Refsource CONFIRM
- www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.htmlX Refsource CONFIRM