CVE-2022-37434
9.8
CRITICAL · CVSS 3.1 · EPSS 19% (pctl 97)
Patch early
EPSS 19% — above the 10% action threshold.
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).
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 18.97% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2022-08-05 |
| Last modified | 2026-07-14 |
Affected (21)
| Vendor | Product |
|---|---|
| apple | ipados |
| apple | iphone os |
| apple | macos |
| apple | watchos |
| debian | debian linux |
| fedoraproject | fedora |
| netapp | active iq unified manager |
| netapp | h300s |
| netapp | h300s firmware |
| netapp | h500s |
| netapp | h500s firmware |
| netapp | h700s |
| netapp | h700s firmware |
| netapp | hci |
| netapp | hci compute node |
| netapp | management services for element software |
| netapp | oncommand workflow automation |
| netapp | ontap select deploy administration utility |
| netapp | storagegrid |
| stormshield | stormshield network security |
| zlib | zlib |
References
- http://seclists.org/fulldisclosure/2022/Oct/37
- http://seclists.org/fulldisclosure/2022/Oct/38
- http://seclists.org/fulldisclosure/2022/Oct/41
- http://seclists.org/fulldisclosure/2022/Oct/42
- http://www.openwall.com/lists/oss-security/2022/08/05/2
- http://www.openwall.com/lists/oss-security/2022/08/09/1
- https://github.com/curl/curl/issues/9271
- https://github.com/ivd38/zlib_overflow
- https://github.com/madler/zlib/blob/21767c654d31d2dccdde4330529775c6c5fd5389/zlib.h#L1062-L1063
- https://github.com/madler/zlib/commit/1eb7682f845ac9e9bf9ae35bbfb3bad5dacbd91d
- https://github.com/madler/zlib/commit/eff308af425b67093bab25f80f1ae950166bece1
- https://github.com/nodejs/node/blob/75b68c6e4db515f76df73af476eccf382bbcb00a/deps/zlib/inflate.c#L762-L764
- https://lists.debian.org/debian-lts-announce/2022/09/msg00012.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWN4VE3JQR4O2SOUS5TXNLANRPMHWV4I/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMBOJ77A7T7PQCARMDUK75TE6LLESZ3O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAVPQNCG3XRLCLNSQRM3KAN5ZFMVXVTY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5U7OTKZSHY2I3ZFJSR2SHFHW72RKGDK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YRQAI7H4M4RQZ2IWZUEEXECBE5D56BH2/
- https://security.netapp.com/advisory/ntap-20220901-0005/
- https://security.netapp.com/advisory/ntap-20230427-0007/
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