7

CVE-2017-17053: linux linux_kernel Use After Free

Modified
AliasesUBUNTU-CVE-2017-17053DEBIAN-CVE-2017-17053
Published 29-11-2017Last modified 05-08-2024

Vulnerability summary

CVE-2017-17053 is a high (CVSS 7.0) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 31.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.0/10
010
High · v3.1 (NVD)
EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
SUSE-SU-2018:2413-1

Timeline

  1. 29-11-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The init_new_context function in arch/x86/include/asm/mmu_context.h in the Linux kernel before 4.12.10 does not correctly handle errors from LDT table allocation when forking a new process, allowing a local attacker to achieve a use-after-free or possibly have unspecified other impact by running a specially crafted program. This vulnerability only affected kernels built with CONFIG_MODIFY_LDT_SYSCALL=y.

CVSS metrics

5 scores · 3 sources · 3 versions

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 05-10-2026

05-10-202604-11-2026

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

0 found

No public exploits indexed.

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.

Ubuntu10 products
  • linux-azure< 4.13.0-1005.7
  • linux-azure-fdeAll versions (No fix recorded)
  • linux-gcp< 4.13.0-1002.5
  • linux-gkeAll versions (No fix recorded)
  • linux-hwe< 4.13.0-32.35~16.04.1
Debian1 product
  • linux< 4.12.12-1
Linux1 product
  • linux_kernel≥ 4.4.144, < 4.4.153 | ≥ 4.6, < 4.9.46 | ≥ 4.10, < 4.12.10

3 vendors · 12 products

References

8 links