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CVE-2018-20783

UnknownEPSS 5.66%

Last modified

CVE-2018-20783 is a vulnerability of currently unknown severity. In PHP before 5.6.39, 7.x before 7.0.33, 7.1.x before 7.1.25, and 7.2.x before 7.2.13, a buffer over-read in PHAR reading functions may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse a .phar file. This is related to phar_parse_pharfile in ext/phar/phar.c.. EPSS estimates a 5.66% chance of exploitation in the next 30 days.

Description

In PHP before 5.6.39, 7.x before 7.0.33, 7.1.x before 7.1.25, and 7.2.x before 7.2.13, a buffer over-read in PHAR reading functions may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse a .phar file. This is related to phar_parse_pharfile in ext/phar/phar.c.

Metrics

EPSS Probability
5.66%

92.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PhpPhp< 5.6.39
PhpPhp>= 7.0.0, < 7.0.33
PhpPhp>= 7.1.0, < 7.1.25
PhpPhp>= 7.2.0, < 7.2.13
OpensuseLeap42.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-20783?
In PHP before 5.6.39, 7.x before 7.0.33, 7.1.x before 7.1.25, and 7.2.x before 7.2.13, a buffer over-read in PHAR reading functions may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse a .phar file. This is related to phar_parse_pharfile in ext/phar/phar.c.
How severe is CVE-2018-20783?
Severity scoring for CVE-2018-20783 is pending analysis. The EPSS model estimates a 5.66% probability of exploitation in the next 30 days.
How do I fix CVE-2018-20783?
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.

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Source: NVD / NIST