7.8

CVE-2017-18075: canonical ubuntu_linux Release of Invalid Pointer or Reference

Modified
AliasesSUSE-SU-2018:0568-1SUSE-SU-2018:0572-1SUSE-SU-2018:0573-1
Published 24-01-2018Last modified 05-08-2024

Vulnerability summary

CVE-2017-18075 is a high (CVSS 7.8) Release of Invalid Pointer or Reference vulnerability in canonical ubuntu_linux. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 34.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.40%
0%100%
Low · +0.01 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 3 · Related 2
RHSA-2018:2948USN-3619-1USN-3619-2

Timeline

  1. 24-01-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls.

CVSS metrics

5 scores · 3 sources · 3 versions

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.39% 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.

Suse20 products
  • kgraft-patch-SLE12-SP2_Update_10&distro=SUSE Linux Enterprise Live Patching 12< 8-2.1
  • kgraft-patch-SLE12-SP2_Update_11&distro=SUSE Linux Enterprise Live Patching 12< 7-2.1
  • kgraft-patch-SLE12-SP2_Update_12&distro=SUSE Linux Enterprise Live Patching 12< 7-2.1
  • kgraft-patch-SLE12-SP2_Update_13&distro=SUSE Linux Enterprise Live Patching 12< 6-2.1
  • kgraft-patch-SLE12-SP2_Update_14&distro=SUSE Linux Enterprise Live Patching 12< 4-2.1
Ubuntu16 products
  • linux< 4.4.0-119.143
  • linux-aws< 4.4.0-1016.16 | < 4.4.0-1054.63
  • linux-azure< 4.15.0-1013.13~16.04.2
  • linux-azure-fdeAll versions (No fix recorded)
  • linux-fips< 4.4.0-1008.10
Canonical1 product
Debian1 product
  • linux< 4.14.13-1
Linux1 product
  • linux_kernel≥ 4.2, < 4.4.111 | ≥ 4.5, < 4.9.76 | ≥ 4.10, < 4.14.13

5 vendors · 39 products

References

35 links
Show all 35 references