CVE-2007-0988 Denial of service in n/a

What is CVE-2007-0988?

CVE-2007-0988 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 20 Feb 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The zend_hash_init function in PHP 5 before 5.2.1 and PHP 4 before 4.4.5, when running on a 64-bit platform, allows context-dependent attackers to cause a denial of service (infinite loop) by unserializing certain integer expressions, which only cause 32-bit arguments to be used after the check for a negative value, as demonstrated by an "a:2147483649:{" argument.

Weakness: CWE-119

Which versions are affected by CVE-2007-0988?

It affects 2 products.

Products include Canonical Ubuntu Linux, Php Php.

How do I fix CVE-2007-0988?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2007-0988 being exploited?

There is no known exploitation of CVE-2007-0988 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-rv23-gf9q-6frc.