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CVE-2007-0988

UnknownEPSS 2.31%

Last modified

CVE-2007-0988 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.31% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.31%

81.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PhpPhp>= 4.0.0, < 4.4.5
PhpPhp>= 5.0.0, < 5.2.1
PhpPhp4.0
CanonicalUbuntu Linux5.10
CanonicalUbuntu Linux6.06
CanonicalUbuntu Linux6.10

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2007-0988?
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.
How severe is CVE-2007-0988?
Severity scoring for CVE-2007-0988 is pending analysis. The EPSS model estimates a 2.31% probability of exploitation in the next 30 days.
How do I fix CVE-2007-0988?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2007-0988?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST