CVE-2015-1607 Denial of service in n/a

What is CVE-2015-1607?

CVE-2015-1607 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 20 Nov 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

kbx/keybox-search.c in GnuPG before 1.4.19, 2.0.x before 2.0.27, and 2.1.x before 2.1.2 does not properly handle bitwise left-shifts, which allows remote attackers to cause a denial of service (invalid read operation) via a crafted keyring file, related to sign extensions and "memcpy with overlapping ranges."

Weakness: CWE-20

Which versions are affected by CVE-2015-1607?

It affects 2 products.

Products include Canonical Ubuntu Linux, Gnupg Gnupg.

How do I fix CVE-2015-1607?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2015-1607 being exploited?

There is no known exploitation of CVE-2015-1607 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 DEBIAN-CVE-2015-1607, GHSA-4w8p-vqv2-2g8w, UBUNTU-CVE-2015-1607.