ID |
CVE-2020-1763
|
Summary |
An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash. |
References |
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Vulnerable Configurations |
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cpe:2.3:a:libreswan:libreswan:3.5:*:*:*:*:*:*:*
cpe:2.3:a:libreswan:libreswan:3.5:*:*:*:*:*:*:*
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cpe:2.3:a:libreswan:libreswan:3.27:*:*:*:*:*:*:*
cpe:2.3:a:libreswan:libreswan:3.27:*:*:*:*:*:*:*
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cpe:2.3:a:libreswan:libreswan:3.28:*:*:*:*:*:*:*
cpe:2.3:a:libreswan:libreswan:3.28:*:*:*:*:*:*:*
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cpe:2.3:a:libreswan:libreswan:3.29:*:*:*:*:*:*:*
cpe:2.3:a:libreswan:libreswan:3.29:*:*:*:*:*:*:*
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cpe:2.3:a:libreswan:libreswan:3.31:*:*:*:*:*:*:*
cpe:2.3:a:libreswan:libreswan:3.31:*:*:*:*:*:*:*
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CVSS |
Base: | 5.0 (as of 05-05-2021 - 13:41) |
Impact: | |
Exploitability: | |
|
CWE |
CWE-125 |
CAPEC |
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Infiltration of Hardware Development Environment
An attacker, leveraging the ability to manipulate components of primary support systems and tools within the development and production environments, inserts malicious software within the hardware and/or firmware development environment. The infiltration purpose is to alter developed hardware components in a system destined for deployment at the victim's organization, for the purpose of disruption or further compromise.
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Overread Buffers
An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
|
Access |
Vector | Complexity | Authentication |
NETWORK |
LOW |
NONE |
|
Impact |
Confidentiality | Integrity | Availability |
NONE |
NONE |
PARTIAL |
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cvss-vector
via4
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AV:N/AC:L/Au:N/C:N/I:N/A:P
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redhat
via4
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advisories | bugzilla | id | 1814541 | title | CVE-2020-1763 libreswan: DoS attack via malicious IKEv1 informational exchange message |
| oval | OR | comment | Red Hat Enterprise Linux must be installed | oval | oval:com.redhat.rhba:tst:20070304026 |
AND | comment | Red Hat Enterprise Linux 8 is installed | oval | oval:com.redhat.rhba:tst:20193384074 |
OR | AND | comment | libreswan is earlier than 0:3.29-7.el8_2 | oval | oval:com.redhat.rhsa:tst:20202070001 |
comment | libreswan is signed with Red Hat redhatrelease2 key | oval | oval:com.redhat.rhsa:tst:20151154002 |
|
AND | comment | libreswan-debugsource is earlier than 0:3.29-7.el8_2 | oval | oval:com.redhat.rhsa:tst:20202070003 |
comment | libreswan-debugsource is signed with Red Hat redhatrelease2 key | oval | oval:com.redhat.rhsa:tst:20193391004 |
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| rhsa | id | RHSA-2020:2070 | released | 2020-05-12 | severity | Important | title | RHSA-2020:2070: libreswan security update (Important) |
|
| rpms | - libreswan-0:3.27-10.el8_0
- libreswan-debuginfo-0:3.27-10.el8_0
- libreswan-debugsource-0:3.27-10.el8_0
- libreswan-0:3.29-7.el8_2
- libreswan-debuginfo-0:3.29-7.el8_2
- libreswan-debugsource-0:3.29-7.el8_2
- libreswan-0:3.29-7.el8_1
- libreswan-debuginfo-0:3.29-7.el8_1
- libreswan-debugsource-0:3.29-7.el8_1
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refmap
via4
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Last major update |
05-05-2021 - 13:41 |
Published |
12-05-2020 - 14:15 |
Last modified |
05-05-2021 - 13:41 |