CVE-2022-37434 Memory corruption in n/a
Heap-based buffer overflow in zlib inflate allows attackers to cause denial of service or execute code via crafted gzip headers in applications using inflateGetHeader.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-37434?
CVE-2022-37434 is a critical memory corruption vulnerability in Apple Ipados, published on 5 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).
Which versions are affected by CVE-2022-37434?
It affects 18 products.
Linux distribution packages (40)
rsync AlmaLinux:8 | All versions | 3.1.3-19.el8 |
rsync-daemon AlmaLinux:8 | All versions | 3.1.3-19.el8 |
zlib AlmaLinux:8 | All versions | 1.2.11-19.el8_6 |
zlib-devel AlmaLinux:8 | All versions | 1.2.11-19.el8_6 |
zlib-static AlmaLinux:8 | All versions | 1.2.11-19.el8_6 |
rsync AlmaLinux:9 | All versions | 3.2.3-18.el9 |
rsync-daemon AlmaLinux:9 | All versions | 3.2.3-18.el9 |
zlib AlmaLinux:9 | All versions | 1.2.11-32.el9_0 |
zlib-devel AlmaLinux:9 | All versions | 1.2.11-32.el9_0 |
zlib-static AlmaLinux:9 | All versions | 1.2.11-32.el9_0 |
minizip Red Hat:enterprise_linux:7::client | All versions | 0:1.2.7-21.el7_9 |
minizip-devel Red Hat:enterprise_linux:7::client | All versions | 0:1.2.7-21.el7_9 |
zlib Red Hat:enterprise_linux:7::client | All versions | 0:1.2.7-21.el7_9 |
zlib-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:1.2.7-21.el7_9 |
zlib-devel Red Hat:enterprise_linux:7::client | All versions | 0:1.2.7-21.el7_9 |
zlib-static Red Hat:enterprise_linux:7::client | All versions | 0:1.2.7-21.el7_9 |
minizip Red Hat:enterprise_linux:7::computenode | All versions | 0:1.2.7-21.el7_9 |
minizip-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:1.2.7-21.el7_9 |
zlib-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:1.2.7-21.el7_9 |
zlib-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:1.2.7-21.el7_9 |
zlib-static Red Hat:enterprise_linux:7::computenode | All versions | 0:1.2.7-21.el7_9 |
minizip Red Hat:enterprise_linux:7::server | All versions | 0:1.2.7-21.el7_9 |
minizip-devel Red Hat:enterprise_linux:7::server | All versions | 0:1.2.7-21.el7_9 |
zlib Red Hat:enterprise_linux:7::server | All versions | 0:1.2.7-21.el7_9 |
zlib-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:1.2.7-21.el7_9 |
zlib-devel Red Hat:enterprise_linux:7::server | All versions | 0:1.2.7-21.el7_9 |
zlib-static Red Hat:enterprise_linux:7::server | All versions | 0:1.2.7-21.el7_9 |
minizip Red Hat:enterprise_linux:7::workstation | All versions | 0:1.2.7-21.el7_9 |
minizip-devel Red Hat:enterprise_linux:7::workstation | All versions | 0:1.2.7-21.el7_9 |
zlib Red Hat:enterprise_linux:7::workstation | All versions | 0:1.2.7-21.el7_9 |
zlib-debuginfo Red Hat:enterprise_linux:7::workstation | All versions | 0:1.2.7-21.el7_9 |
zlib-devel Red Hat:enterprise_linux:7::workstation | All versions | 0:1.2.7-21.el7_9 |
zlib-static Red Hat:enterprise_linux:7::workstation | All versions | 0:1.2.7-21.el7_9 |
rsync Red Hat:enterprise_linux:8::baseos | All versions | 0:3.1.3-19.el8 |
rsync-daemon Red Hat:enterprise_linux:8::baseos | All versions | 0:3.1.3-19.el8 |
rsync-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:3.1.3-19.el8 |
rsync-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:3.1.3-19.el8 |
zlib Red Hat:enterprise_linux:8::baseos | All versions | 0:1.2.11-19.el8_6 |
zlib-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:1.2.11-19.el8_6 |
zlib-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:1.2.11-19.el8_6 |
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Watchos, Debian Debian Linux, Fedoraproject Fedora and 12 more.
How do I fix CVE-2022-37434?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-37434 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-37434 exists.
Public exploit code: 2 proofs of concept on GitHub.
Other vulnerabilities in Apple Ipados
- CVE-2025-43300 Apple iOS, iPadOS, and macOS Out-of-Bounds Write
- CVE-2025-24201 Apple Multiple Products WebKit Out-of-Bounds Write
- CVE-2025-24085 Apple Multiple Products Use-After-Free
- CVE-2025-31200 Apple Multiple Products Memory Corruption
- CVE-2025-31201 Apple Multiple Products Arbitrary Read and Write
Sources
Also known as ALPINE-CVE-2022-37434, ALSA-2022:7106, ALSA-2022:7314, ALSA-2022:7793, ALSA-2022:8291, AZL-10470 and 57 more.