Arch Linux Security Advisory ASA-201505-15
=========================================
Severity: Low
Date    : 2015-05-26
CVE-ID  : CVE-2015-0847
Package : nbd
Type    : denial of service
Remote  : Yes
Link    : https://wiki.archlinux.org/title/CVE

Summary
======
The package nbd before version 3.11-1 is vulnerable to denial of service.

Resolution
=========
Upgrade to 3.11-1.

# pacman -Syu "nbd>=3.11-1"

The problem has been fixed upstream in version 3.11.

Workaround
=========
None.

Description
==========
Signal handlers themselves were entered only once, but they called
posixly unsafe, non-reentrant functions, such as syslog(). If a signal
was caught in the middle of the execution of such function, consequences
were undefined. In practice, nbd-server was observed to deadlock during
the execution of sigchld_handler().

Impact
=====
A remote attacker is able to send requests to the nbd server that may
lead to a deadlock resulting in denial of service.

References
=========
https://sourceforge.net/p/nbd/mailman/message/34091218/
https://access.redhat.com/security/cve/CVE-2015-0847
https://github.com/NetworkBlockDevice/nbd/commit/412def

ArchLinux: 201505-15: nbd: denial of service

May 26, 2015

Summary

Signal handlers themselves were entered only once, but they called posixly unsafe, non-reentrant functions, such as syslog(). If a signal was caught in the middle of the execution of such function, consequences were undefined. In practice, nbd-server was observed to deadlock during the execution of sigchld_handler().

Resolution

Upgrade to 3.11-1. # pacman -Syu "nbd>=3.11-1"
The problem has been fixed upstream in version 3.11.

References

https://sourceforge.net/p/nbd/mailman/message/34091218/ https://access.redhat.com/security/cve/CVE-2015-0847 https://github.com/NetworkBlockDevice/nbd/commit/412def

Severity
Package : nbd
Type : denial of service
Remote : Yes
Link : https://wiki.archlinux.org/title/CVE

Workaround

None.

Related News

4.Lock AbstractDigital Esm H320
1 - 2 min read
Nmap 7.95 introduces myriad enhancements, primarily focusing on OS and service detection signatures. This reflects the dedication of the Nmap
5.ShakingHands Esm H320
3 - 5 min read
There has been a promising shift in the tech industry, with major companies pledging to release products with built-in security features. This
18.WifiCutout Landscape Esm H320
2 - 3 min read
A novel attack called TunnelVision has been discovered. It compromises the security of virtually all VPN apps, rendering their purpose useless. The
21.Globe RadiatingCode Esm H320
2 - 3 min read
The recent discovery of a backdoor in XZ Utils , a widely used Linux tool, raises concerns about the security of the open-source ecosystem. While
13.Lock StylizedMotherboard Esm H320
1 - 2 min read
Spiral Linux is a Debian-based distribution that offers a range of desktop environments, making it stand out from other Linux distributions. In
32.Lock Code Circular Esm H320
2 - 3 min read
Two critical security vulnerabilities were found in pgAdmin, the open-source administration tool for PostgreSQL . The vulnerabilities assigned
1.Penguin Landscape Esm H320
2 - 3 min read
The recent release of AlmaLinux 9.4 , closely aligned with Red Hat Enterprise Linux (RHEL) 9.4 , presents Linux admins and infosec professionals
11.Locks IsometricPattern Esm H320
2 - 3 min read
The upcoming release of Linux Mint 22 will introduce significant changes, particularly in handling XApp , GNOME applications, and the Software

Get the Latest News & Insights

Sign up to get the latest security news affecting Linux and open source delivered straight to your inbox.

© 2024 Guardian Digital, Inc All Rights Reserved