USN-5445-1: Subversion vulnerabilities

Releases

• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• subversion - Advanced version control system

Details

Ace Olszowka discovered that Subversion incorrectly handled certain
svnserve requests. A remote attacker could possibly use this issue to cause
svnserver to crash, resulting in a denial of service. This issue only
affected Ubuntu 18.04 LTS. (CVE-2018-11782)

Tomas Bortoli discovered that Subversion incorrectly handled certain
svnserve requests. A remote attacker could possibly use this issue to cause
svnserver to crash, resulting in a denial of service. This issue only
affected Ubuntu 18.04 LTS. (CVE-2019-0203)

Thomas Åkesson discovered that Subversion incorrectly handled certain
inputs. An attacker could possibly use this issue to cause a denial of
service. (CVE-2020-17525)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04

• libapache2-mod-svn - 1.13.0-3ubuntu0.2
• libsvn1 - 1.13.0-3ubuntu0.2
• subversion - 1.13.0-3ubuntu0.2

Ubuntu 18.04

• libapache2-mod-svn - 1.9.7-4ubuntu1.1
• libsvn1 - 1.9.7-4ubuntu1.1
• subversion - 1.9.7-4ubuntu1.1

In general, a standard system update will make all the necessary changes.

References

• CVE-2020-17525
• CVE-2019-0203
• CVE-2018-11782

Related notices

• USN-5322-1: libsvn1, ruby-svn, libsvn-dev, python-subversion, libsvn-doc, libsvn-ruby1.8, libapache2-svn, libapache2-mod-svn, subversion, subversion-tools, libsvn-java, libsvn-perl
• USN-4082-2: libsvn1, subversion
• USN-4082-1: libsvn1, ruby-svn, libsvn-dev, python-subversion, libsvn-doc, libsvn-ruby1.8, libapache2-svn, libapache2-mod-svn, subversion, subversion-tools, libsvn-java, libsvn-perl