7.8

CVE-2016-0728: canonical ubuntu_linux

Modified
AliasesMGASA-2016-0031MGASA-2016-0032MGASA-2016-0033
Published 08-02-2016Last modified 05-08-2024

Vulnerability summary

CVE-2016-0728 is a high (CVSS 7.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 3.44% chance of exploitation in the next 30 days, higher than 89% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (exploit-database, 19-01-2016)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
3.44%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2exploit-database

Advisory lineage

Upstream 0 · Downstream 14 · Duplicates 1 · Related 11
DSA-3448-1OPENSUSE-SU-2024:10128-1RHSA-2016:0068RHSA-2016:0103SUSE-SU-2016:0745-1SUSE-SU-2016:0746-1

Timeline

  1. 08-02-2016
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.

CVSS metrics

5 scores · 3 sources · 3 versions

EPSS trend

Probability

3.44%

Chance of exploitation in the next 30 days

Percentile

89%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.44% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • exploit-databaselocallinuxUnverified

    Linux Kernel 4.4.1 - REFCOUNT Overflow Use-After-Free in Keyrings Local Privilege Escalation (1)

    Maturity: poc

  • exploit-databaselocallinuxUnverified

    Linux Kernel 4.4.1 - REFCOUNT Overflow Use-After-Free in Keyrings Local Privilege Escalation (2)

    Maturity: poc

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat36 products
  • kernel< 0:3.10.0-327.4.5.el7
  • kernel-abi-whitelists< 0:3.10.0-327.4.5.el7
  • kernel-bootwrapper< 0:3.10.0-327.4.5.el7
  • kernel-debug< 0:3.10.0-327.4.5.el7
  • kernel-debug-debuginfo< 0:3.10.0-327.4.5.el7
Suse34 products
  • kernel-default&distro=SUSE Linux Enterprise Desktop 12< 3.12.51-52.39.1
  • kernel-default&distro=SUSE Linux Enterprise Desktop 12 SP1< 3.12.51-60.25.1
  • kernel-default&distro=SUSE Linux Enterprise Server 12< 3.12.51-52.39.1
  • kernel-default&distro=SUSE Linux Enterprise Server 12 SP1< 3.12.51-60.25.1
  • kernel-default&distro=SUSE Linux Enterprise Server for SAP Applications 12< 3.12.51-52.39.1
Mageia12 products
  • kernel< 4.1.15-2.mga5
  • kernel-linus< 4.1.15-2.mga5
  • kernel-tmb< 4.1.15-2.mga5
  • kernel-userspace-headers< 4.1.15-2.mga5
  • kmod-broadcom-wl< 6.30.223.271-5.mga5.nonfree
Ubuntu4 products
  • linux< 3.13.0-76.120
  • linux-lts-utopic< 3.16.0-59.79~14.04.1
  • linux-lts-vivid< 3.19.0-47.53~14.04.1
  • linux-lts-wily< 4.2.0-25.30~14.04.1
Debian2 products
Canonical1 product
Google1 product
  • androidEOL4.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.0.4 | 4.1 | 4.1.2 | 4.2 | 4.2.1 | 4.2.2 | 4.3 | 4.3.1 | 4.4 | 4.4.1 | 4.4.2 | 4.4.3 | 5.0 | 5.0.1 | 5.0.2 | 5.1 | 5.1.0 | 5.1.1 | 6.0 | 6.0.1
Hp1 product
Linux1 product
  • linux_kernel≥ 3.8, < 3.10.95 | ≥ 3.11, < 3.12.53 | ≥ 3.13, < 3.14.59 | ≥ 3.15, < 3.16.35 | ≥ 3.17, < 3.18.26 | ≥ 3.19, < 4.1.16 | ≥ 4.2, < 4.3.4 | ≥ 4.4, < 4.4.1

9 vendors · 92 products

References

73 links
Show all 73 references