FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

go -- multiple vulnerabilities

Affected packages
go < 1.16.5,1


VuXML ID 079b3641-c4bd-11eb-a22a-693f0544ae52
Discovery 2021-05-01
Entry 2021-06-03

The Go project reports:

The SetString and UnmarshalText methods of math/big.Rat may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents.

ReverseProxy in net/http/httputil could be made to forward certain hop-by-hop headers, including Connection. In case the target of the ReverseProxy was itself a reverse proxy, this would let an attacker drop arbitrary headers, including those set by the ReverseProxy.Director.

The LookupCNAME, LookupSRV, LookupMX, LookupNS, and LookupAddr functions in net, and their respective methods on the Resolver type may return arbitrary values retrieved from DNS which do not follow the established RFC 1035 rules for domain names. If these names are used without further sanitization, for instance unsafely included in HTML, they may allow for injection of unexpected content. Note that LookupTXT may still return arbitrary values that could require sanitization before further use.

The NewReader and OpenReader functions in archive/zip can cause a panic or an unrecoverable fatal error when reading an archive that claims to contain a large number of files, regardless of its actual size.


CVE Name CVE-2021-33195
CVE Name CVE-2021-33196
CVE Name CVE-2021-33197
CVE Name CVE-2021-33198