This minor release includes 4 security fixes following the security policy
<https://go.dev/security>:
- crypto/rand: rand.Read hangs with extremely large buffers
On Windows, rand.Read will hang indefinitely if passed a buffer larger
than 1 << 32 - 1 bytes.
Thanks to Davis Goodin and Quim Muntal, working at Microsoft on the Go
toolset, for reporting this issue.
This is CVE-2022-30634 and Go issue https://go.dev/issue/52561.
- crypto/tls: session tickets lack random ticket_age_add
Session tickets generated by crypto/tls did not contain a randomly
generated ticket_age_add. This allows an attacker that can observe TLS
handshakes to correlate successive connections by comparing ticket ages
during session resumption.
Thanks to GitHub user @nervuri for reporting this.
This is CVE-2022-30629 and Go issue https://go.dev/issue/52814.
- os/exec: empty Cmd.Path can result in running unintended binary on
Windows
If, on Windows, Cmd.Run, cmd.Start, cmd.Output, or cmd.CombinedOutput
are executed when Cmd.Path is unset and, in the working directory, there
are binaries named either "..com" or "..exe", they will be executed.
Thanks to Chris Darroch (chrisd8088@github.com), brian m. carlson (
bk2204@github.com), and Mikhail Shcherbakov (https://twitter.com/yu5k3)
for reporting this.
This is CVE-2022-30580 and Go issue https://go.dev/issue/52574.
- path/filepath: Clean(`.\c:`) returns `c:` on Windows
On Windows, the filepath.Clean function could convert an invalid path to
a valid, absolute path. For example, Clean(`.\c:`) returned `c:`.
Thanks to Unrud for reporting this issue.
This is CVE-2022-29804 and Go issue https://go.dev/issue/52476.
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