What is "shellshock"

n. (alternative spelling of shell shock English)

"Shellshock" is a single released by British group New Order on 17 March 1986. The song originally appeared on the soundtrack to the movie Pretty in Pink one month prior to its single release. Production is credited to New Order and John Robie, and is loosely inspired by the 1983 Robie-produced R&B club hit, "One More Shot" - a studio project where Robie performed under the band name, C-Bank, and featuring vocals by Jenny Burton.

The single had differing B-sides; in the UK (catalogue number: FAC 143) the 7" came with the recycled "Thieves Like Us Instrumental" which also turned up in the movie Pretty in Pink (although not on the soundtrack), while the 12" had a dub mix titled "Shellcock". The US release had the also previously released instrumental version of " Thieves Like Us," which had appeared on the Murder 12" single on Factory Benelux.

The 12" boasts an extended remix of the song running nearly ten minutes, arguably New Order's longest recording behind the original cut of " Elegia". For the release of the popular singles compilation Substance, the original Pretty in Pink soundtrack version was not used, as is widely believed, but an edited version of the 12" remix cut down to six and a half minutes omitting an entire verse of vocals. It is this version that appears most often on CD. The 9:41 single remix does not appear on any subsequent New Order compilations, however it surfaced on CD and digital download in 2011 on Volume 6 of the Blank & Jones Soeighties compilation series, titled "Extended Version".

Shellshock is a fictional character in the Marvel Universe.

Shellshock, in comics, may refer to:

• Shellshock (Marvel Comics), a Marvel Comics character
• Shellshock (DC Comics), a DC Comics character

Shellshock or shell shock may refer to:

• Shell shock, a term coined to describe the reaction of some soldiers in World War I, or any war, to the trauma of battle

Shellshock, also known as Bashdoor, is a family of security bugs in the widely used Unix Bash shell, the first of which was disclosed on 24 September 2014. Many Internet-facing services, such as some web server deployments, use Bash to process certain requests, allowing an attacker to cause vulnerable versions of Bash to execute arbitrary commands. This can allow an attacker to gain unauthorized access to a computer system.

Stéphane Chazelas contacted Bash's maintainer, Chet Ramey, on 12 September 2014 telling Ramey about his discovery of the original bug, which he called "Bashdoor". Working together with security experts, he soon had a patch as well. The bug was assigned the CVE identifier CVE-2014-6271. It was announced to the public on when Bash updates with the fix were ready for distribution.

The first bug causes Bash to unintentionally execute commands when the commands are concatenated to the end of function definitions stored in the values of environment variables. Within days of the publication of this, intense scrutiny of the underlying design flaws discovered a variety of related vulnerabilities, (CVE-2014-6277, CVE-2014-6278, CVE-2014-7169, CVE-2014-7186, and CVE-2014-7187); which Ramey addressed with a series of further patches.

Attackers exploited Shellshock within hours of the initial disclosure by creating botnets of compromised computers to perform distributed denial-of-service attacks and vulnerability scanning. Security companies recorded millions of attacks and probes related to the bug in the days following the disclosure.

Shellshock could potentially compromise millions of unpatched servers and other systems. Accordingly, it has been compared to the Heartbleed bug in its severity.

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