CVE-2015-1781 Memory corruption in n/a

What is CVE-2015-1781?

CVE-2015-1781 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 28 Sep 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer overflow in the gethostbyname_r and other unspecified NSS functions in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response, which triggers a call with a misaligned buffer.

Weakness: CWE-119

Which versions are affected by CVE-2015-1781?

It affects 6 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Gnu Glibc, Suse Linux Enterprise Debuginfo, Suse Linux Enterprise Desktop, Suse Linux Enterprise Server.

How do I fix CVE-2015-1781?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2015-1781 being exploited?

There is no known exploitation of CVE-2015-1781 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-2015-1781, DLA-230-1, GHSA-w9wj-9x52-h75c, UBUNTU-CVE-2015-1781.