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Gentoo: GLSA-202109-04 Normal: libgcrypt Critical Vulnerability

gentoo
Calendar Grey November 2, 2020
Dist Gentoo Esm H88
A libcurl issue could result in an exploit; update to resolve this. Refer to Gentoo GLSA 202101-09 for further information.
A vulnerability in libssh could lead to a Denial of Service condition.

Summary

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

Topics%20covered

Topics Covered

security advisory denial of service gentoo normal severity libssh

Resolution

All libssh users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-libs/libssh-0.9.5"

References

[ 1 ] CVE-2020-16135 https://nvd.nist.gov/vuln/detail/CVE-2020-16135

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202011-05
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: libssh: Denial of Service
Date: November 03, 2020
Bugs: #734624
ID: 202011-05

Topics%20covered

Topics Covered

security advisory denial of service gentoo normal severity libssh

Synopsis

A vulnerability in libssh could lead to a Denial of Service condition.

Background

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

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-libs/libssh < 0.9.5 >= 0.9.5

Impact

===== An attacker could cause a possible Denial of Service condition.

Workaround

There is no known workaround at this time.

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