Posts Tagged ‘bug’

Software bug downs Macquarie student admin portal

February 3rd, 2012

Macquarie University students were intermittently barred from online enrolments this week due to a bug in the institution’s eStudent administration portal.

Some 31,000 students use the portal – based on TechnologyOne’s StudentOne product – to enrol in classes, access their grades and pay fees.

The university had steeled itself for a period of high demand, with students preparing to return from summer holidays in four weeks’ time.

But performance of the site degraded severely late Monday night, when an application query began consuming about 85 percent of all available database capacity.

System performance fluctuated throughout the day, so despite intermittent failures, eStudent has processed 67,000 class registrations since Monday night, and almost a third more registrations on Tuesday than the same time last year.

However, deputy vice-chancellor Deidre Anderson acknowledged that “the personal experience for students has been unacceptable”.

“Many students had difficulty accessing the system and organising their timetable,” she told students yesterday afternoon.

“I apologise unreservedly for the inconvenience this has caused and the additional stress created by this failure.”

A Macquarie University spokesman said it identified a bug in the StudentOne software at about 11.30am yesterday and applied a workaround in consultation with TechnologyOne.

The university advised students that the issue had been resolved at about 7pm.

According to the university’s spokesman, eStudent is hosted on two computing grids at separate sites connected over 10 Gbps fibre, with access to “multiple terabytes of high-performance storage”.

He emphasised that it was not a hardware fault.

In her message to students, Anderson said: “We had a high-performance grid available and engineers on site around the clock.

“Despite this, we experienced a number of critical system failures.

“None of these failures took the system offline for long, but to prevent further incidents we had to reduce the number of students able to access it at any one time.”

Macquarie University has used StudentOne since 2001, alongside Curtin University, James Cook University and Flinders University.

Source:http://www.itnews.com.au/News/288977,software-bug-downs-macquarie-student-admin-portal.aspx

Widespread Bright House service outages blamed on ’software bug’

September 7th, 2011

Much of the Tampa Bay area had a busy signal Tuesday as Bright House Networks grappled with widespread service outages.

Internet signals went dead. Cable programs froze. Businesses couldn’t run credit card machines. Internal phone lines at the Pinellas Sheriff’s Office went down. Even local libraries were affected.

Starting at about 10:40 a.m. Tuesday, Bright House customers throughout Pinellas, Pasco, Hernando, Hillsborough and Manatee counties were without phone, cable and high-speed Internet services.

Company officials said service was restored by about 5 p.m., though there were scattered reports from people who said they were still having problems Tuesday night.

One customer in Apollo Beach told the St. Petersburg Times he still didn’t have service as late as 9 p.m., and some Twitter users in Tampa also reported they had no Internet.

Bright House officials said the heavy thunderstorms Tuesday morning had nothing to do with the service interruption. Instead, it was a computer issue.

“This was a software bug that caused a cascading effect,” said Bright House spokesman Joe Durkin.

Durkin said it was unclear how many people lost service.

“We have well over a million customers in the Tampa market total,” Durkin said. “Were they all affected? Of course not. Some areas were not affected.”

As residents realized their service was out Tuesday, they took to social media to vent. They flooded sites like Facebook and Twitter with messages about the interruptions. Some even called the newspaper for help.

Some of Bright House’s own phone lines were tied up, so people trying to call the company couldn’t get through.

“They were continuously jammed,” said Poul Hornsleth, president of R.W. Caldwell, Inc., a real estate and insurance company in Gulfport. “Fortunately, it was just a delay.”

Even the company’s news channel Bay News 9 was frozen midway through a weather forecaster’s report.

Pinellas County workers, including those at the Sheriff’s Office, said they experienced spotty service with their voice-over Internet phones, though 911 emergency functions were not affected.

“Many of us here in the office reverted to cell phones,” spokeswoman Cecilia Barreda said.

That’s what Apollo Beach resident Ken Cunningham had to do all day. The 59-year-old said he still didn’t have TV, Internet or phone service as of 10 p.m. Tuesday. Cunningham, who said he has had about a dozen outages in the past few months, is fed up.

“It’s not uncommon from time to time to have some kind of a problem with software or a piece of equipment,” Durkin said. “This is probably a rare occurrence in size. … I’ve never seen anything that has risen to such a level.”

Source:http://www.tampabay.com/news/business/bright-house-experiencing-widespread-service-outages/1189986

Software Bug Wrongly Clears Women of Breast Cancer

January 30th, 2011

Two women have been diagnosed with breast cancer 3months after a computer error wrongly cleared them of the disease. This incident happened at the BreastScreen Victoria. Following the mix up of patient details officials had to re-examine about 5,000 mammograms of various women.

BreastScreen Victoria CEO, Vicki Pridmore said, “It is unfortunate that the initial diagnosis proved incorrect. We deeply regret having to inform these two women, who had previously been given the all clear, their screens were in fact not clear, with further investigation showing they have breast cancer.

Source:-http://www.medindia.net/news/Software-Bug-Wrongly-Clears-Women-of-Breast-Cancer-80124-1.htm

Adobe fails to fully fix PDF bug

July 6th, 2010

An Adobe patch for a well-publicized bug in the company’s Reader PDF software doesn’t fix the vulnerability, the security researcher who uncovered the flaw confirmed.

Last Tuesday, Adobe shipped an update for Reader and Acrobat, its popular PDF viewing and creation programs, that patched 17 vulnerabilities, including a design issue that gave attackers an easy way to con users into running malware. The bug, which was disclosed by Belgium researcher Didier Stevens in late March, allowed hackers to leverage the “/Launch” function, a feature that executes other software from within a PDF document.

When combined with another trick — Stevens also showed how a Reader warning could be changed to further fool users — the flaw could be used to dupe users into launching malware masquerading as legitimate software.Hackers have been using Stevens’ technique in mass attacks to infect Windows PCs since mid-April.On Sunday, Stevens confirmed that the patch didn’t fix the flaw.

I did some research and discovered that Adobe implemented a blacklist of extensions for the launch action, but that the blacklisting functionality identifies the file type of ‘cmd.exe’ as .exe’, and not .exe,” he said in a post to his blog July 4.Attackers can still get a PDF document to run malware simply by enclosing the malicious filename within single- or double-quotation marks, Stevens said.

Le Mahn Tung, a researcher at Bach Khoa Internetwork Security (BKIS), which is housed at the Hanoi University of Technology in Vietnam, first noticed that Adobe had not properly patched the bug.

On his blog, Stevens offered a workaround to deflect attacks that sidestep Adobe’s blacklist. His workaround, however, involves editing the Windows registry, a task most users will shy away from.Adobe admitted its blacklist wasn’t foolproof, and said it was looking into Tung’s and Stevens’ bypass techniques.

While blacklist capabilities alone are not a perfect solution to defend against those with malicious intent, this option reduces the risk of attack,” said Brad Arkin, Adobe’s director of security and privacy, in an entry on the company’s security team’s blog. “We will evaluate [the Tung] workaround to determine whether additional changes to the blacklist are required.

Adobe fixed the warning dialog flaw, Stevens noted, so that hackers could not modify it to increase the chance that users would fall for their ploys. Adobe’s Arkin also pointed that out. “The warning message provided includes strong wording advising users to only open and execute the file if it comes from a trusted source,” Arkin said.

Last week’s patch also modified Reader and Acrobat so that the /Launch feature is disabled by default, requiring users who want the functionality to manually switch it on. In earlier editions, /Launch was enabled by default.

The updated Reader and Acrobat for Windows, Mac and Linux can be downloaded using the links included in the security advisory Adobe published last week. Alternately, users can run the programs’ built-in update mechanism to grab the new versions.

Source:-http://www.computerworld.com/s/article/9178897/Adobe_fails_to_fully_fix_PDF_bug?taxonomyId=17

Expert tips to spot & stop computer bug

May 13th, 2010

Computer experts are warning about an insidious virus that can strike without warning while you’re working or surfing the Internet. Kristin Pagonis found out about it the hard way when her son was working on his homework. This pop-up kept popping on the screen — just more pop-ups kept coming on,” Pagonis explains. “This virus just took over the entire computer. We had no control over anything at all… He couldn’t save his homework. He couldn’t turn the computer off himself. He couldn’t go to the Internet — it was stuck on this one page.”

3This bold new bug attacks where many users are most vulnerable: their lack of computer knowledge.
“It would say you have 38 viruses on your computer,” Pagonis adds, “hit okay to take care of the problem.”
But Brian Mikashus of FixedByAGeek.com warns that hitting OK – or any other key – will cause big problems. You click yes, no or the X,” Mikashus warns, “no matter what you click, it automatically installs. The first thing it does is stop everything else from working.”

It’s so official looking that many people really believe that their computer has viruses (which it doesn’t) and that they need to update their antivirus software. They program it to annoy you to death so that you put your credit card in,” Mikashus explains. “About three hours later, your credit card company will call you [and] ask if you’re buying stuff in India.” Cyber detectives believe this latest deception is coming out of South Africa and Russia; and it’s an infection that can strike just about anywhere.
You can be infected by an image on a website by the java script that was placed there — without anybody knowing,” adds Albert Whale, President of ABS Computer Technology.

While most people may think their computer’s antivirus software will stop the problem, Whale warns that’s not always the case. “Sometimes it does. Most of the time it’s not [going to stop it].” Mikashus says he’s been seeing more and more cases lately – with about half of his clients affected by this bug.

Source:-http://kdka.com/technology/Computer.Virus.Security.2.1692512.html

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