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CVE-2022-37434

critical CVSS 9.8 EPSS 19.0%

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).

Versions it affects

Software versions checked with the free lookup that CVE-2022-37434 applies to, and the release that fixes it where the sources name one.

zlib 1.2.11 fixed in 2511

At a glance

Severity
Critical
CVSS base score
9.8 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
19.0% probability of exploitation in the next 30 days, higher than 97% of scored vulnerabilities
Weakness
CWE-120
Published
2022-08-05
NVD CVE.org

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