CVE-2016-4951: canonical ubuntu_linux
Vulnerability summary
CVE-2016-4951 is a high (CVSS 7.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 43.9% 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 10 · Related 7Timeline
- 23-05-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The tipc_nl_publ_dump function in net/tipc/socket.c in the Linux kernel through 4.6 does not verify socket existence, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a dumpit operation.
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
0.52%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.52% 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 causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu6 products
- linux< 4.4.0-28.47
- linux-lts-vivid< 3.19.0-64.72~14.04.1
- linux-lts-wily< 4.2.0-41.48~14.04.1
- linux-lts-xenial< 4.4.0-28.47~14.04.1
- linux-raspi2< 4.4.0-1016.22
Canonical1 product
- ubuntu_linuxEOL14.04 | 15.10 | 16.04
Debian1 product
- linux< 4.5.5-1
Linux1 product
- linux_kernel≥ 3.19, < 4.1.28 | ≥ 4.2, < 4.4.14 | ≥ 4.5, < 4.6.3
Oracle1 product
- linuxEOL6
5 vendors · 10 products
References
26 links- www.openwall.com/lists/oss-security/2016/05/21/2Mailing ListX Refsource MLISTThird Party AdvisoryREPORT
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlX Refsource CONFIRMThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- github.com/torvalds/linux/commit/45e093ae2830cd1264677d47ff9a95a71f5d9f9cX Refsource CONFIRMVendor Advisory
Show all 26 references
- www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.htmlX Refsource CONFIRMThird Party Advisory
