CVE-2015-2808 Weak cryptography in n/a

What is CVE-2015-2808?

CVE-2015-2808 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 1 Apr 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the "Bar Mitzvah" issue.

Weakness: CWE-327

Which versions are affected by CVE-2015-2808?

It affects 61 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fujitsu Sparc Enterprise M3000 Firmware, Fujitsu Sparc Enterprise M4000 Firmware, Fujitsu Sparc Enterprise M5000 Firmware, Fujitsu Sparc Enterprise M8000 Firmware and 55 more.

How do I fix CVE-2015-2808?

Change a configuration setting.

Is CVE-2015-2808 being exploited?

There is no known exploitation of CVE-2015-2808 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

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

Also known as GHSA-jcj6-c96p-jcmm, UBUNTU-CVE-2015-2808.