CVE-2023-29420

Public Exploit

Description

An issue was discovered in libbzip3.a in bzip3 before 1.2.3. There is a crash caused by an invalid memmove in bz3_decode_block.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.12%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/kspalaiologos/bzip3/issues/92 issue tracking exploit patch
https://github.com/kspalaiologos/bzip3/compare/1.2.2...1.2.3 release notes
https://github.com/kspalaiologos/bzip3/commit/bb06deb85f1c249838eb938e0dab271d4194f8fa patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NA7S7HDUAINOTCSWQZ5LIW756DYY22V2/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JLSE25SV7K2NB6FTFT4UHJOJUHBHYHY/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMLFV2FJK3CM7NJLVPZI5RUAFQZICPWW/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-29420?
CVE-2023-29420 has been scored as a medium severity vulnerability.
How to fix CVE-2023-29420?
To fix CVE-2023-29420, 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-2023-29420 being actively exploited in the wild?
It is possible that CVE-2023-29420 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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