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01 Record

CVE-2019-0053

Junos OS: Insufficient validation of environment variables in telnet client may lead to stack-based buffer overflow

HighPUBLISHEDCNA: juniper
CNA base score7.8 CVSS v3.xCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

02 Description

Junos OS: Insufficient validation of environment variables in telnet client may lead to stack-based buffer overflow

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.58% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 47.8% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2019-07-11 19:40Z7 YR AGO
Last updated
2024-09-16 19:15Z2 YR AGO
Reserved
2018-10-11
Assigning CNA
juniper
Record state
PUBLISHED
Severity
High (CVSS 7.8)
CNA CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-121Stack-based Buffer OverflowVariant
  • CWE-787Out-of-bounds WriteBase
Data version
5.1
Document digest
ace00e2d54fd2dc28479f06f3361f1bfc09f24f5e49cb465c6dad1df6ed72378

05 Affected products

VendorProductVersionsPlatforms
Juniper NetworksJunos OS12.3 versions prior to 12.3R12-S13, 12.3X48 versions prior to 12.3X48-D80, 14.1X53 versions prior to 14.1X53-D130 and 14.1X53-D49, 15.1 versions prior to 15.1F6-S12 and15.1R7-S4, 15.1X49 versions prior to 15.1X49-D170, 15.1X53 versions prior to 15.1X53-D237 and 15.1X53-D496 and 15.1X53-D591 and 15.1X53-D69, 16.1 versions prior to 16.1R3-S11 and 16.1R7-S4, 16.2 versions prior to 16.2R2-S9, 17.1 versions prior to 17.1R3, 17.2 versions prior to 17.2R1-S8 and 17.2R2-S7 and 17.2R3-S1, 17.3 versions prior to 17.3R3-S4, 17.4 versions prior to 17.4R1-S6 and 17.4R2-S3 and 17.4R3, 18.1 versions prior to 18.1R2-S4 and 18.1R3-S3, 18.2 versions prior to 18.2R1-S5 and 18.2R2-S2 and 18.2R3, 18.2X75 versions prior to 18.2X75-D40, 18.3 versions prior to 18.3R1-S3 and 18.3R2, 18.4 versions prior to 18.4R1-S2 and 18.4R2—

06 References

07 Remediation

The following software releases have been updated to resolve this specific issue: 12.3R12-S13, 12.3X48-D80, 12.3X48-D85, 14.1X53-D130, 14.1X53-D49, 15.1F6-S12, 15.1R7-S4, 15.1X49-D170, 15.1X53-D237, 15.1X53-D496, 15.1X53-D591, 15.1X53-D69, 16.1R3-S11, 16.1R7-S4, 16.2R2-S9, 17.1R3, 17.2R1-S8, 17.2R2-S7, 17.2R3-S1, 17.3R3-S4, 17.4R1-S6, 17.4R2-S3, 17.4R3, 18.1R2-S4, 18.1R3-S3, 18.2R1-S5, 18.2R2-S2, 18.2R3, 18.2X75-D40, 18.3R1-S3, 18.3R2, 18.4R1-S2, 18.4R2, 19.1R1, and all subsequent releases.

08 Fixed in

Arch Linux

  • inetutils
    Fixed in 2.0-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

  • inetutils
    Fixed in 2:1.9.4-11

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • inetutils
    Fixed in 2:1.9.4-11

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • inetutils
    Fixed in 2:1.9.4-11

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • socks4-server
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • socks4-server
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • inetutils
    Fixed in 2:1.9.2-1ubuntu0.1~esm2
    Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • inetutils
    Fixed in 2:1.9.4-1ubuntu0.1~esm3
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • inetutils
    Fixed in 2:1.9.4-3ubuntu0.1+esm2
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.