Unrated
In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increas...
CVE-2022-2928
First seen on SecPulse
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2022-2928 dhcp Fixed in: 4.4.3_p1-r0
- Debian DEBIAN-CVE-2022-2928 isc-dhcp Fixed in: 4.4.1-2.3+deb11u1
Original description The description as published by the source.
In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However, there is not a corresponding call to option_dereference() to decrement the refcount field. The function add_option() is only used in server responses to lease query packets. Each lease query response calls this function for several options, so eventually, the reference counters could overflow and cause the server to abort.
References
- advisory kb.isc.org
- advisory lists.debian.org
- advisory security.gentoo.org
- web lists.fedoraproject.org
- web lists.fedoraproject.org
- web lists.fedoraproject.org