Buffer overflow in Apple Ipados
CVE-2022-37434
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).
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.190 (97.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.179 · newest: 0.190 · change: +0.011
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/ivd38/zlib_overflow (Exploit, Third Party Advisory)
- github.com/madler/zlib/commit/eff308af425b67093bab25f80f1ae950166bece1 (Patch, Third Party Advisory)
- github.com/madler/zlib/blob/21767c654d31d2dccdde4330529775c6c5fd5389/zlib.h (Exploit, Third Party Advisory)
- github.com/nodejs/node/blob/75b68c6e4db515f76df73af476eccf382bbcb00a/deps/zlib/… (Exploit, Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/08/05/2 (mailing-list, Mailing List, Third Party Advisory)
- github.com/curl/curl/issues/9271 (Exploit, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2022/08/09/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
- www.debian.org/security/2022/dsa-5218 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-37434?
- CVE-2022-37434 is a critical-severity vulnerability in Apple Ipados, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-08-05.
- How severe is CVE-2022-37434?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-37434 known to be exploited?
- 48 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.