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CVE-2021-28831

high CVSS 7.5 EPSS 2.7%

decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.

Versions it affects

Software versions checked with the free lookup that CVE-2021-28831 applies to, and the release that fixes it where the sources name one.

busybox 1.32.0 fixed in 1.3.0

At a glance

Severity
High
CVSS base score
7.5 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
2.7% probability of exploitation in the next 30 days, higher than 86% of scored vulnerabilities
Weakness
CWE-755
Published
2021-03-19
NVD CVE.org

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