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CVE-2008-5557

UnknownEPSS 7.37%

Last modified

CVE-2008-5557 is a vulnerability of currently unknown severity. Heap-based buffer overflow in ext/mbstring/libmbfl/filters/mbfilter_htmlent.c in the mbstring extension in PHP 4.3.0 through 5.2.6 allows context-dependent attackers to execute arbitrary code via a crafted string containing an HTML entity, which is not properly handled during Unicode conversion, related to the (1) mb_convert_encoding, (2) mb_check_encoding, (3) mb_convert_variables, and (4) mb_parse_str functions.. EPSS estimates a 7.37% chance of exploitation in the next 30 days.

Description

Heap-based buffer overflow in ext/mbstring/libmbfl/filters/mbfilter_htmlent.c in the mbstring extension in PHP 4.3.0 through 5.2.6 allows context-dependent attackers to execute arbitrary code via a crafted string containing an HTML entity, which is not properly handled during Unicode conversion, related to the (1) mb_convert_encoding, (2) mb_check_encoding, (3) mb_convert_variables, and (4) mb_parse_str functions.

Metrics

EPSS Probability
7.37%

93.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PhpPhp4.3.0
PhpPhp4.3.1
PhpPhp4.3.2
PhpPhp4.3.3
PhpPhp4.3.4
PhpPhp4.3.5
PhpPhp4.3.6
PhpPhp4.3.7
PhpPhp4.3.8
PhpPhp4.3.9
PhpPhp4.3.10
PhpPhp4.3.11
PhpPhp4.4.0
PhpPhp4.4.1
PhpPhp4.4.2
PhpPhp4.4.3
PhpPhp4.4.4
PhpPhp4.4.5
PhpPhp4.4.6
PhpPhp4.4.7
PhpPhp4.4.8
PhpPhp4.4.9
PhpPhp5.0.0
PhpPhp5.0.1
PhpPhp5.0.2
PhpPhp5.0.3
PhpPhp5.0.4
PhpPhp5.0.5
PhpPhp5.1.0
PhpPhp5.1.1
PhpPhp5.1.2
PhpPhp5.1.3
PhpPhp5.1.4
PhpPhp5.1.5
PhpPhp5.1.6
PhpPhp5.2.0
PhpPhp5.2.1
PhpPhp5.2.2
PhpPhp5.2.3
PhpPhp5.2.4
PhpPhp5.2.5
PhpPhp5.2.6

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2008-5557?
Heap-based buffer overflow in ext/mbstring/libmbfl/filters/mbfilter_htmlent.c in the mbstring extension in PHP 4.3.0 through 5.2.6 allows context-dependent attackers to execute arbitrary code via a crafted string containing an HTML entity, which is not properly handled during Unicode conversion, related to the (1) mb_convert_encoding, (2) mb_check_encoding, (3) mb_convert_variables, and (4) mb_parse_str functions.
How severe is CVE-2008-5557?
Severity scoring for CVE-2008-5557 is pending analysis. The EPSS model estimates a 7.37% probability of exploitation in the next 30 days.
How do I fix CVE-2008-5557?
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-2008-5557?

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

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Source: NVD / NIST