Allele Security Alert
ASA-2019-00508
Identifier(s)
ASA-2019-00508, CVE-2019-5608, FreeBSD-SA-19:19.mldv2
Title
ICMPv6 / MLDv2 out-of-bounds memory access
Vendor(s)
The FreeBSD Project
Product(s)
FreeBSD
Affected version(s)
All supported versions of FreeBSD
Fixed version(s)
2019-08-06 17:13:41 UTC (stable/12, 12.0-STABLE)
2019-08-06 17:11:17 UTC (releng/12.0, 12.0-RELEASE-p9)
2019-08-06 17:15:46 UTC (stable/11, 11.3-STABLE)
2019-08-06 17:11:17 UTC (releng/11.3, 11.3-RELEASE-p2)
2019-08-06 17:11:17 UTC (releng/11.2, 11.2-RELEASE-p13)
Proof of concept
Unknown
Description
The ICMPv6 input path incorrectly handles cases where an MLDv2 listener query packet is internally fragmented across multiple mbufs.
A remote attacker may be able to cause an out-of-bounds read or write that may cause the kernel to attempt to access an unmapped page and subsequently panic.
Technical details
Unknown
Credits
CJD (Apple)
Reference(s)
FreeBSD-SA-19:19.mldv2.asc
https://www.freebsd.org/security/advisories/FreeBSD-SA-19:19.mldv2.asc
mldv2.11.patch
https://security.FreeBSD.org/patches/SA-19:19/mldv2.11.patch
mldv2.11.patch.asc
https://security.FreeBSD.org/patches/SA-19:19/mldv2.11.patch.asc
mldv2.12.patch
https://security.FreeBSD.org/patches/SA-19:19/mldv2.12.patch
mldv2.12.patch.asc
https://security.FreeBSD.org/patches/SA-19:19/mldv2.12.patch.asc
[base] Revision 350648
https://svnweb.freebsd.org/base?view=revision&revision=r350648
[base] Revision 350644
https://svnweb.freebsd.org/base?view=revision&revision=r350644
[base] Revision 350650
https://svnweb.freebsd.org/base?view=revision&revision=r350650
CVE-2019-5608
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5608
CVE-2019-5608
https://nvd.nist.gov/vuln/detail/CVE-2019-5608
If there is any error in this alert or you wish a comprehensive analysis, let us know.
Last modified: August 12, 2019