(Reuters) - Intel Corp on Thursday said that recently issued patches for flaws in its chips could cause computers using its older Broadwell and Haswell processors to reboot more often than normal and that Intel may need to issue updates to fix the buggy patches.

In a statement on Intel's website, Navin Shenoy, general manager of the company's data center group, said Intel had received reports about the issue and was working directly with data center customers to "discuss" the issue.

"We are working quickly with these customers to understand, diagnose and address this reboot issue," Shenoy said in the statement. "If this requires a revised firmware update from Intel, we will distribute that update through the normal channels."

Earlier on Thursday, the Wall Street Journal reported that Intel was asking cloud computing customers to hold off installing patches that address new security flaws that affect nearly all of its processors because the patches have bugs of their own. (http://on.wsj.com/2Eyo7yA)

Intel has identified three issues in updates released over the past week for "microcode," or firmware, the newspaper reported, citing a confidential document the company had shared with some customers that it had reviewed.

The world's largest chipmaker confirmed last week that the security issues reported by researchers in the company's widely used microprocessors could allow hackers to steal sensitive information from computers, phones and other electronic devices.

Intel shares were down about half a percent to $43.20 in after-hours trading after the announcement. Intel shares have lost 4.5 percent since the news of the chip flaws emerged on Jan. 3.

(Reporting by Uday Sampath and Sonam Rai in Bengaluru; and Stephen Nellis in San Francisco; editing by G Crosse and Lisa Shumaker)