| Name | CVE-2021-34558 |
| Description | The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malicious TLS server to cause a TLS client to panic. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| golang-1.11 (PTS) | buster | 1.11.6-1+deb10u4 | vulnerable |
| buster (security) | 1.11.6-1+deb10u7 | vulnerable |
| golang-1.15 (PTS) | bullseye | 1.15.15-1~deb11u4 | fixed |
The information below is based on the following data on fixed versions.
Notes
[buster] - golang-1.11 <postponed> (Limited support, minor issue, DoS)
[stretch] - golang-1.8 <postponed> (Minor issue, DoS, requires rebuilding reverse-dependencies)
[stretch] - golang-1.7 <postponed> (Minor issue, DoS, requires rebuilding reverse-dependencies)
https://github.com/golang/go/issues/47143
https://github.com/golang/go/commit/58bc454a11d4b3dbc03f44dfcabb9068a9c076f4 (1.16.x)
key_agreement.go also bundled in various other packages