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Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client — accessible from the CLI or shell — in Junos OS. Inbound telnet services are not affected by this issue. This issue affects: Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S13; 12.3X48 versions prior to 12.3X48-D80; 14.1X53 versions prior to 14.1X53-D130, 14.1X53-D49; 15.1 versions prior to 15.1F6-S12, 15.1R7-S4; 15.1X49 versions prior to 15.1X49-D170; 15.1X53 versions prior to 15.1X53-D237, 15.1X53-D496, 15.1X53-D591, 15.1X53-D69; 16.1 versions prior to 16.1R3-S11, 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, 17.2R2-S7, 17.2R3-S1; 17.3 versions prior to 17.3R3-S4; 17.4 versions prior to 17.4R1-S6, 17.4R2-S3, 17.4R3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S3; 18.2 versions prior to 18.2R1-S5, 18.2R2-S2, 18.2R3; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S3, 18.3R2; 18.4 versions prior to 18.4R1-S2, 18.4R2.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client ? accessible from the CLI or shell ? in Junos OS. Inbound telnet services are not affected by this issue. This issue a
Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client — accessible from the CLI or shell — in Junos OS. Inbound telnet services are not affected by this issue. This issue a
CVE Modified by Juniper Networks, Inc.7/27/2019 2:15:12 PM
Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client ? accessible from the CLI or shell ? in Junos OS. Inbound telnet services are not affected by this issue. This issue a
Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client ? accessible from the CLI or shell ? in Junos OS. Inbound telnet services are not affected by this issue. This issue a
OR
*cpe:2.3:o:juniper:junos:17.2:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.2:r1-s2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.2:r1-s4:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.2:r1-s7:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.2:r2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.2:r2-s6:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.3:r2-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.3:r3-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.3:r3-s2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.3:r3-s3:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.4:r1-s4:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.4:r2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.4:r2-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:17.4:r2-s2:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:juniper:junos:18.2x75:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.2x75:d20:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:*
Added
CVSS V2
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Added
CVSS V3
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CWE
CWE-119
Changed
Reference Type
https://kb.juniper.net/JSA10947 No Types Assigned
https://kb.juniper.net/JSA10947 Vendor Advisory
Changed
Reference Type
https://seclists.org/bugtraq/2019/Jul/45 No Types Assigned
https://seclists.org/bugtraq/2019/Jul/45 Third Party Advisory
Changed
Reference Type
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:12.telnet.asc No Types Assigned
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:12.telnet.asc Third Party Advisory
Changed
Reference Type
https://www.exploit-db.com/exploits/45982 No Types Assigned
https://www.exploit-db.com/exploits/45982 Exploit, Third Party Advisory, VDB Entry
CVE Modified by Juniper Networks, Inc.7/24/2019 12:15:11 PM
Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client ? accessible from the CLI or shell ? in Junos OS. Inbound telnet services are not affected by this issue. This issue a
Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client ? accessible from the CLI or shell ? in Junos OS. Inbound telnet services are not affected by this issue. This issue a
Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client ? accessible from the CLI or shell ? in Junos OS. Inbound telnet services are not affected by this issue. This issue a
Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client ? accessible from the CLI or shell ? in Junos OS. Inbound telnet services are not affected by this issue. This issue a