4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
71.6%
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.
CPE | Name | Operator | Version |
---|---|---|---|
juniper:junos | juniper junos | eq | 12.3 |
juniper:junos | juniper junos | eq | 12.3r12 |
[
{
"vendor": "Juniper Networks",
"product": "Junos OS",
"versions": [
{
"version": "12.3 versions prior to 12.3R12-S13",
"status": "affected"
},
{
"version": "12.3X48 versions prior to 12.3X48-D80",
"status": "affected"
},
{
"version": "14.1X53 versions prior to 14.1X53-D130 and 14.1X53-D49",
"status": "affected"
},
{
"version": "15.1 versions prior to 15.1F6-S12 and15.1R7-S4",
"status": "affected"
},
{
"version": "15.1X49 versions prior to 15.1X49-D170",
"status": "affected"
},
{
"version": "15.1X53 versions prior to 15.1X53-D237 and 15.1X53-D496 and 15.1X53-D591 and 15.1X53-D69",
"status": "affected"
},
{
"version": "16.1 versions prior to 16.1R3-S11 and 16.1R7-S4",
"status": "affected"
},
{
"version": "16.2 versions prior to 16.2R2-S9",
"status": "affected"
},
{
"version": "17.1 versions prior to 17.1R3",
"status": "affected"
},
{
"version": "17.2 versions prior to 17.2R1-S8 and 17.2R2-S7 and 17.2R3-S1",
"status": "affected"
},
{
"version": "17.3 versions prior to 17.3R3-S4",
"status": "affected"
},
{
"version": "17.4 versions prior to 17.4R1-S6 and 17.4R2-S3 and 17.4R3",
"status": "affected"
},
{
"version": "18.1 versions prior to 18.1R2-S4 and 18.1R3-S3",
"status": "affected"
},
{
"version": "18.2 versions prior to 18.2R1-S5 and 18.2R2-S2 and 18.2R3",
"status": "affected"
},
{
"version": "18.2X75 versions prior to 18.2X75-D40",
"status": "affected"
},
{
"version": "18.3 versions prior to 18.3R1-S3 and 18.3R2",
"status": "affected"
},
{
"version": "18.4 versions prior to 18.4R1-S2 and 18.4R2",
"status": "affected"
}
]
}
]
packetstormsecurity.com/files/153746/FreeBSD-Security-Advisory-FreeBSD-SA-19-12.telnet.html
kb.juniper.net/JSA10947
lists.debian.org/debian-lts-announce/2022/11/msg00033.html
lists.debian.org/debian-lts-announce/2023/10/msg00013.html
seclists.org/bugtraq/2019/Jul/45
security.FreeBSD.org/advisories/FreeBSD-SA-19:12.telnet.asc
www.exploit-db.com/exploits/45982
More
4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
71.6%