7.5

CVE-2018-1060: canonical ubuntu_linux Improper Input Validation

Modified
AliasesALPINE-CVE-2018-1060UBUNTU-CVE-2018-1060DEBIAN-CVE-2018-1060
Published 18-06-2018Last modified 08-10-2026

Vulnerability summary

CVE-2018-1060 is a high (CVSS 7.5) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 5.04% chance of exploitation in the next 30 days, higher than 92.2% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
5.04%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 23 · Related 12
DLA-1519-1DLA-1520-1DSA-4306-1DSA-4307-1MGASA-2018-0256MGASA-2018-0270

Timeline

  1. 18-06-2018
    PublishedVulnerability first disclosed.
  2. 08-10-2026
    Last modifiedVulnerability information updated.

Description

python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in pop3lib's apop() method. An attacker could use this flaw to cause denial of service.

CVSS metrics

8 scores · 5 sources · 3 versions

EPSS trend

Probability

5.04%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

No change 0.00 pp

From 5.04% 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
  • referenceUnverified

    Exploit Reference (bugs.python.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat4 products
Alpine3 products
  • python2< 2.7.15-r0
  • python2-tkinter< 2.7.15-r0
  • python3< 3.5.6-r0 | < 3.6.5-r0 | < 3.6.6-r0
Ubuntu3 products
  • python2.7< 2.7.6-8ubuntu0.5 | < 2.7.12-1ubuntu0~16.04.4
  • python3.4< 3.4.3-1ubuntu1~14.04.7
  • python3.5< 3.5.2-2ubuntu0~16.04.4~14.04.1+esm1 | < 3.5.2-2ubuntu0~16.04.5
Debian2 products
[unknown]1 product
  • pythonpython 2.7.15 | python 3.4.9 | python 3.5.6 | python 3.7.0
Canonical1 product
Fedoraproject1 product
Python1 product
  • python≥ 2.7.0, < 2.7.15 | ≥ 3.0.0, < 3.4.9 | ≥ 3.5.0, < 3.5.6 | > 3.6.0, < 3.6.5

8 vendors · 16 products

References

29 links
Show all 29 references