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gentooGentoo FoundationGLSA-202011-05
HistoryNov 03, 2020 - 12:00 a.m.

libssh: Denial of service

2020-11-0300:00:00
Gentoo Foundation
security.gentoo.org
28

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.005 Low

EPSS

Percentile

77.3%

JSON

Background

libssh is a multiplatform C library implementing the SSHv2 protocol on client and server side.

Description

libssh was found to have a NULL pointer dereference in tftpserver.c if the function ssh_buffer_new returns NULL.

Impact

An attacker could cause a possible Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All libssh users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-libs/libssh-0.9.5"
OSVersionArchitecturePackageVersionFilename
Gentooanyallnet-libs/libssh< 0.9.5UNKNOWN

Related

osv 4
altlinux 1
oraclelinux 1
openvas 12
rocky 1
cve 1
mageia 2
nessus 16
alpinelinux 1
fedora 2
redhatcve 1
almalinux 1
prion 1
debiancve 1
debian 1
veracode 1
ubuntucve 1
redhat 21
ubuntu 1
ibm 5
oracle 1
osv
osv
CVE-2020-16135
2020-07-29 21:15:13
libssh - security update
2020-07-31 00:00:00
Low: libssh security update
2021-11-09 09:16:07
altlinux
altlinux
Security fix for the ALT Linux 9 package libssh version 0.9.5-alt1
2021-07-30 00:00:00
oraclelinux
oraclelinux
libssh security update
2021-11-16 00:00:00
openvas
openvas
Fedora: Security Advisory for libssh (FEDORA-2020-f4f5e49cb8)
2020-09-16 00:00:00
Huawei EulerOS: Security Advisory for libssh (EulerOS-SA-2021-1608)
2021-03-12 00:00:00
Huawei EulerOS: Security Advisory for libssh (EulerOS-SA-2021-1088)
2021-01-19 00:00:00
rocky
rocky
libssh security update
2021-11-09 09:16:07
cve
cve
CVE-2020-16135
2020-07-29 21:15:00
mageia
mageia
Updated libssh packages fix security vulnerability
2020-08-18 20:41:27
Updated freerdp packages fix security vulnerability
2020-08-18 23:43:16
nessus
nessus
EulerOS Virtualization 2.9.1 : libssh (EulerOS-SA-2021-1608)
2021-03-10 00:00:00
Rocky Linux 8 : libssh (RLSA-2021:4387)
2023-11-07 00:00:00
Fedora 32 : libssh (2020-f4f5e49cb8)
2020-09-16 00:00:00
alpinelinux
alpinelinux
CVE-2020-16135
2020-07-29 21:15:00
fedora
fedora
[SECURITY] Fedora 32 Update: libssh-0.9.5-1.fc32
2020-09-15 16:18:05
[SECURITY] Fedora 33 Update: libssh-0.9.5-1.fc33
2020-09-25 17:18:34
redhatcve
redhatcve
CVE-2020-16135
2020-07-31 13:44:24
almalinux
almalinux
Low: libssh security update
2021-11-09 09:16:07
prion
prion
Null pointer dereference
2020-07-29 21:15:00
debiancve
debiancve
CVE-2020-16135
2020-07-29 21:15:00
debian
debian
[SECURITY] [DLA 2303-1] libssh security update
2020-07-31 23:22:13
veracode
veracode
Denial Of Service (DoS)
2020-09-11 22:08:07
ubuntucve
ubuntucve
CVE-2020-16135
2020-07-29 00:00:00
redhat
redhat
(RHSA-2021:4387) Low: libssh security update
2021-11-09 09:16:07
(RHSA-2021:4750) Important: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.9] 0-day
2021-11-19 19:10:20
(RHSA-2022:0318) Moderate: Red Hat OpenShift distributed tracing 2.1.0 security update
2022-01-27 16:46:55
ubuntu
ubuntu
libssh vulnerability
2020-08-04 00:00:00
ibm
ibm
Security Bulletin: IBM Sterling Connect:Direct for UNIX Certified Container is affected by multiple vulnerabilities in Red Hat Universal Base Image version 8.4-206.1626828523 and Binutils version 2.30-93
2022-03-14 20:12:12
Security Bulletin: Multiple security vulnerabilities fixed in Cloud Pak for Automation components
2022-01-19 16:26:59
Security Bulletin: IBM QRadar SIEM is vulnerable to using components with Known Vulnerabilities
2022-04-25 14:44:33
oracle
oracle
Oracle Critical Patch Update Advisory - April 2022
2022-04-19 00:00:00

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.005 Low

EPSS

Percentile

77.3%

JSON
Related for GLSA-202011-05
osv4altlinux1oraclelinux1openvas12rocky1cve1mageia2nessus16alpinelinux1fedora2redhatcve1almalinux1prion1debiancve1debian1veracode1ubuntucve1redhat21ubuntu1ibm5oracle1