CVE-2016-9123 Integer Overflow in go-jose

What is CVE-2016-9123?

CVE-2016-9123 is a high-severity vulnerability in Go JOSE All versions before 1.0.5, published on 28 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

go-jose before 1.0.5 suffers from a CBC-HMAC integer overflow on 32-bit architectures. An integer overflow could lead to authentication bypass for CBC-HMAC encrypted ciphertexts on 32-bit architectures.

Weakness: CWE-190

Which versions are affected by CVE-2016-9123?

3 open source packages ship an affected version, including github.com/square/go-jose. It affects 1 product.

Products include Go-Jose Project Go-Jose.

How do I fix CVE-2016-9123?

Upgrade github.com/square/go-jose to 0.0.0-20160903044734-789a4c4bd4c1 or later.

Is CVE-2016-9123 being exploited?

There is no known exploitation of CVE-2016-9123 in the wild and no public exploit code.

Other vulnerabilities in Go JOSE All versions before 1.0.5

• CVE-2016-9121 Elliptic Curve Key Disclosure in go-jose Critical 9.1
• CVE-2026-34986 Go JOSE affect by a panic in JWE decryption High 7.5
• CVE-2016-9122 Go JOSE Signature Validation Bypass High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2016-9123, GHSA-3fx4-7f69-5mmg, GO-2020-0009.