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Alerts This Week
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Alerts This Week
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Gentoo: GLSA-202303-12 Moderate: OpenSSH Security Flaw Detected

gentoo
Calendar Grey March 19, 2017
Scroller Gentoo
Gentoo Linux advisory GLSA 202308-15 for OpenSSH vulnerability poses risks of unauthorized access. Immediate action suggested.
A buffer overflow in PuTTY might allow remote attackers to execute arbitrary code or cause a denial of service.

Summary

A heap-corrupting buffer overflow bug in the ssh_agent_channel_data function of PuTTY was found.

Topics%20covered

Topics Covered

security advisory gentoo buffer overflow remote execution normal severity putty

Resolution

All PuTTY users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/putty-0.68"

References

[ 1 ] CVE-2017-6542 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-6542

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201703-03
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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: PuTTY: Buffer overflow
Date: March 19, 2017
Bugs: #610552
ID: 201703-03

Topics%20covered

Topics Covered

security advisory gentoo buffer overflow remote execution normal severity putty

Synopsis

A buffer overflow in PuTTY might allow remote attackers to execute arbitrary code or cause a denial of service.

Background

PuTTY is a free implementation of Telnet and SSH for Windows and Unix platforms, along with an xterm terminal emulator.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/putty < 0.68 >= 0.68

Impact

===== A remote attacker, utilizing the SSH agent forwarding of an SSH server, could execute arbitrary code with the privileges of the user running the client or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.