Описание
Security update for dhcp
This update for dhcp fixes the following issues:
- CVE-2022-2928: Fixed an option refcount overflow (bsc#1203988).
- CVE-2022-2929: Fixed a DHCP memory leak (bsc#1203989).
Список пакетов
Container suse/sles/15.6/libguestfs-tools:1.1.1
Container suse/sles/15.7/libguestfs-tools:1.4.0
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SUSE Linux Enterprise Module for Basesystem 15 SP3
SUSE Linux Enterprise Module for Basesystem 15 SP4
SUSE Linux Enterprise Module for Server Applications 15 SP3
SUSE Linux Enterprise Module for Server Applications 15 SP4
openSUSE Leap 15.3
openSUSE Leap 15.4
Ссылки
- Link for SUSE-SU-2022:3991-1
- E-Mail link for SUSE-SU-2022:3991-1
- SUSE Security Ratings
- SUSE Bug 1203988
- SUSE Bug 1203989
- SUSE CVE CVE-2022-2928 page
- SUSE CVE CVE-2022-2929 page
Описание
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.
Затронутые продукты
Ссылки
- CVE-2022-2928
- SUSE Bug 1203988
Описание
In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.
Затронутые продукты
Ссылки
- CVE-2022-2929
- SUSE Bug 1203989