Vulnerability Description
In FreeBSD 11.3-PRERELEASE and 12.0-STABLE before r347591, 11.2-RELEASE before 11.2-RELEASE-p10, and 12.0-RELEASE before 12.0-RELEASE-p4, a bug in the pf IPv6 fragment reassembly logic incorrectly uses the last extension header offset from the last received packet instead of the first packet allowing maliciously crafted IPv6 packets to cause a crash or potentially bypass the packet filter.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | 11.2 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/152933/FreeBSD-Security-Advisory-FreeBSD-SAThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/108395
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:05.pf.ascPatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20190611-0001/
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- https://www.synacktiv.com/ressources/Synacktiv_OpenBSD_PacketFilter_CVE-2019-559ExploitThird Party Advisory
- http://packetstormsecurity.com/files/152933/FreeBSD-Security-Advisory-FreeBSD-SAThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/108395
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:05.pf.ascPatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20190611-0001/
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- https://www.synacktiv.com/ressources/Synacktiv_OpenBSD_PacketFilter_CVE-2019-559ExploitThird Party Advisory
FAQ
What is CVE-2019-5597?
CVE-2019-5597 is a vulnerability with a CVSS score of 9.1 (CRITICAL). In FreeBSD 11.3-PRERELEASE and 12.0-STABLE before r347591, 11.2-RELEASE before 11.2-RELEASE-p10, and 12.0-RELEASE before 12.0-RELEASE-p4, a bug in the pf IPv6 fragment reassembly logic incorrectly use...
How severe is CVE-2019-5597?
CVE-2019-5597 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2019-5597?
Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.