CVE-2022-37434 — Out-of-bounds Write in Zlib

CWE-787 — Out-of-bounds WriteCWE-120 — Classic Buffer OverflowCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer25 documents11 sources
Severity
9.8CRITICALNVD
EPSS
92.5%
top 0.26%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
ZlibApple IpadosApple Iphone OS+5 more
Timeline
PublishedAug 5
Latest updateJul 15

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).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages7 packages

▶Debianzlib/zlib< 1:1.2.11.dfsg-2+deb11u2+3
▶NVDzlib/zlib1.2.12
▶NVDapple/macos11.0 — 11.7.1+1
▶NVDapple/ipados< 15.7.1
▶NVDapple/watchos< 9.1

Also affects: Debian Linux 10.0, Fedora 35, 36, 37

Patches

Patch: www.openwall.com ↗Patch: github.com ↗Patch: www.openwall.com ↗

🔴Vulnerability Details

4
OSV
klibc vulnerabilities↗2024-04-16
▶
GHSA
GHSA-cfmr-vrgj-vqwv: zlib through 1↗2022-08-06
▶
CVEList
CVE-2022-37434: zlib through 1↗2022-08-05
▶
OSV
CVE-2022-37434: zlib through 1↗2022-08-05
▶

📋Vendor Advisories

20
Oracle
Oracle Oracle Siebel CRM Risk Matrix: Repository Utilities (zlib) — CVE-2022-37434↗2024-07-15
▶
Ubuntu
klibc vulnerabilities↗2024-05-23
▶
Ubuntu
klibc vulnerabilities↗2024-04-16
▶
Oracle
Oracle Oracle Hyperion Risk Matrix: Security (zlib) — CVE-2022-37434↗2024-01-15
▶
Oracle
Oracle Oracle Communications Risk Matrix: Virtual Network Function Manager (zlib) — CVE-2022-37434↗2023-07-15
▶
CVE-2022-37434 — Out-of-bounds Write in Zlib | cvebase