CVE-2017-9239 Null dereference in n/a

What is CVE-2017-9239?

CVE-2017-9239 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 26 May 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An issue was discovered in Exiv2 0.26. When the data structure of the structure ifd is incorrect, the program assigns pValue_ to 0x0, and the value of pValue() is 0x0. TiffImageEntry::doWriteImage will use the value of pValue() to cause a segmentation fault. To exploit this vulnerability, someone must open a crafted tiff file.

Weakness: CWE-369

Which versions are affected by CVE-2017-9239?

1 open source package ship an affected version, including exiv2. It affects 2 products.

Products include Canonical Ubuntu Linux, Exiv2 Exiv2.

How do I fix CVE-2017-9239?

Upgrade to a fixed version.

Is CVE-2017-9239 being exploited?

There is no known exploitation of CVE-2017-9239 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-2017-9239, DLA-963-1, GHSA-977x-9gqx-rv45, PYSEC-2017-112, UBUNTU-CVE-2017-9239.