CVE-2019-17263

Public Exploit

Description

In libyal libfwsi before 20191006, libfwsi_extension_block_copy_from_byte_stream in libfwsi_extension_block.c has a heap-based buffer over-read because rejection of an unsupported size only considers values less than 6, even though values of 6 and 7 are also unsupported. NOTE: the vendor has disputed this as described in the GitHub issue

Category

3.3
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.15%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/libyal/libfwsi/issues/13 third party advisory exploit
https://github.com/libyal/libfwsi/compare/20181227...20191006 third party advisory patch
http://packetstormsecurity.com/files/154774/libyal-libfwsi-Buffer-Overread.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-17263?
CVE-2019-17263 has been scored as a low severity vulnerability.
How to fix CVE-2019-17263?
To fix CVE-2019-17263, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-17263 being actively exploited in the wild?
It is possible that CVE-2019-17263 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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