CVE-2016-0723: linux linux_kernel
Vulnerability summary
CVE-2016-0723 is a medium (CVSS 6.8) vulnerability in linux linux_kernel. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 32.3% of scored vulnerabilities.
Not severe (CVSS 6.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 14 · Related 12Timeline
- 08-02-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Race condition in the tty_ioctl function in drivers/tty/tty_io.c in the Linux kernel through 4.4.1 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free and system crash) by making a TIOCGETD ioctl call during processing of a TIOCSETD ioctl call.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.8MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.8MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
32%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.38% 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-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- CWE-362Concurrent Execution using Shared Resource with Improper SynchronizationThe product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
Affected systems
Known conditions: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu21 products
- linux< 3.13.0-83.127
- linux-azureAll versions (No fix recorded)
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-azure-fde-5.15All versions (No fix recorded)
Debian1 product
- linux< 4.3.3-6
Linux1 product
- linux_kernel≤ 4.4.1
3 vendors · 23 products
References
41 links
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlX Refsource CONFIRM
- bugzilla.redhat.com/show_bug.cgi?id=1296253X Refsource CONFIRM
Show all 41 references
- source.android.com/security/bulletin/2016-07-01.htmlX Refsource CONFIRM
- lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.htmlVendor AdvisoryX Refsource FEDORA
- www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.htmlX Refsource CONFIRM
- github.com/torvalds/linux/commit/5c17c861a357e9458001f021a7afa7aab9937439X Refsource CONFIRM
- lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.htmlVendor AdvisoryX Refsource FEDORA
- support.f5.com/csp/article/K43650115X Refsource CONFIRM