A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libslirp | Libslirp_project | * | 4.2.0 (including) |
| Advanced Virtualization for RHEL 8.1.1 | RedHat | virt:8.1-8010120200911011910.5db1954d | * |
| Advanced Virtualization for RHEL 8.1.1 | RedHat | virt-devel:8.1-8010120200911011910.5db1954d | * |
| Advanced Virtualization for RHEL 8.2.1 | RedHat | virt:8.2-8020120200707202843.11e3e113 | * |
| Advanced Virtualization for RHEL 8.2.1 | RedHat | virt-devel:8.2-8020120200707202843.11e3e113 | * |
| Red Hat Enterprise Linux 7 | RedHat | qemu-kvm-10:1.5.3-175.el7_9.1 | * |
| Red Hat Enterprise Linux 7 | RedHat | qemu-kvm-ma-10:2.12.0-48.el7_9.2 | * |
| Red Hat Enterprise Linux 8 | RedHat | container-tools:rhel8-8020120200601155013.ffd2803a | * |
| Red Hat Enterprise Linux 8 | RedHat | virt-devel:rhel-8030020200909014558.30b713e6 | * |
| Red Hat Enterprise Linux 8 | RedHat | virt:rhel-8030020200909014558.30b713e6 | * |
| Red Hat OpenStack Platform 13.0 (Queens) | RedHat | qemu-kvm-rhev-10:2.12.0-48.el7_9.2 | * |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | RedHat | qemu-kvm-rhev-10:2.12.0-48.el7_9.2 | * |
| Red Hat Virtualization Engine 4.3 | RedHat | qemu-kvm-rhev-10:2.12.0-48.el7_9.2 | * |
| Libslirp | Ubuntu | devel | * |
| Libslirp | Ubuntu | esm-infra/focal | * |
| Libslirp | Ubuntu | focal | * |
| Libslirp | Ubuntu | groovy | * |
| Libslirp | Ubuntu | hirsute | * |
| Libslirp | Ubuntu | impish | * |
| Libslirp | Ubuntu | jammy | * |
| Libslirp | Ubuntu | kinetic | * |
| Libslirp | Ubuntu | lunar | * |
| Libslirp | Ubuntu | mantic | * |
| Libslirp | Ubuntu | noble | * |
| Libslirp | Ubuntu | oracular | * |
| Libslirp | Ubuntu | plucky | * |
| Libslirp | Ubuntu | trusty | * |
| Qemu | Ubuntu | bionic | * |
| Qemu | Ubuntu | eoan | * |
| Qemu | Ubuntu | esm-infra-legacy/trusty | * |
| Qemu | Ubuntu | esm-infra/bionic | * |
| Qemu | Ubuntu | esm-infra/xenial | * |
| Qemu | Ubuntu | trusty | * |
| Qemu | Ubuntu | trusty/esm | * |
| Qemu | Ubuntu | xenial | * |
| Qemu-kvm | Ubuntu | precise/esm | * |
| Slirp4netns | Ubuntu | eoan | * |
| Slirp4netns | Ubuntu | focal | * |
| Slirp4netns | Ubuntu | trusty | * |