7.8

CVE-2017-8824: linux linux_kernel Use After Free

Modified
AliasesRHSA-2018:0399UBUNTU-CVE-2017-8824DEBIAN-CVE-2017-8824
Published 05-12-2017Last modified 05-08-2024

Vulnerability summary

CVE-2017-8824 is a high (CVSS 7.8) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 1.34% chance of exploitation in the next 30 days, higher than 71.4% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (exploit-database, 07-12-2017)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
1.34%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1exploit-database

Advisory lineage

Upstream 0 · Downstream 27 · Related 14
DLA-1200-1DSA-4073-1DSA-4082-1MGASA-2018-0106MGASA-2018-0107MGASA-2018-0126

Timeline

  1. 05-12-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The dccp_disconnect function in net/dccp/proto.c in the Linux kernel through 4.14.3 allows local users to gain privileges or cause a denial of service (use-after-free) via an AF_UNSPEC connect system call during the DCCP_LISTEN state.

CVSS metrics

6 scores · 4 sources · 3 versions

EPSS trend

Probability

1.34%

Chance of exploitation in the next 30 days

Percentile

71%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.34% 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

1 found
  • exploit-databasedoslinuxVerified

    Linux Kernel 4.10.5 / < 4.14.3 (Ubuntu) - DCCP Socket Use-After-Free

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

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

Redhat25 products
  • kernel< 0:3.10.0-514.44.1.el7
  • kernel-abi-whitelists< 0:3.10.0-514.44.1.el7
  • kernel-bootwrapper< 0:3.10.0-514.44.1.el7
  • kernel-debug< 0:3.10.0-514.44.1.el7
  • kernel-debug-debuginfo< 0:3.10.0-514.44.1.el7
Ubuntu17 products
  • linux< 3.13.0-142.191 | < 4.4.0-116.140
  • linux-aws< 4.4.0-1014.14 | < 4.4.0-1052.61
  • linux-azure< 4.13.0-1011.14
  • linux-azure-fdeAll versions (No fix recorded)
  • linux-fips< 4.4.0-1005.5
Debian1 product
  • linux< 4.14.7-1
Linux1 product
  • linux_kernel≥ 2.6.14, < 3.2.97 | ≥ 3.3, < 3.16.52 | ≥ 3.17, < 3.18.95 | ≥ 3.19, < 4.1.50 | ≥ 4.2, < 4.4.116 | ≥ 4.5, < 4.9.82 | ≥ 4.10, < 4.14.20

4 vendors · 44 products

References

40 links
Show all 40 references