Ubuntu Security Notice 5445-1 - 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. 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.
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Ubuntu Security Notice USN-5445-1
May 26, 2022
subversion vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in subversion.
Software Description:
- 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 Ã…kesson 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 LTS:
libapache2-mod-svn 1.13.0-3ubuntu0.2
libsvn1 1.13.0-3ubuntu0.2
subversion 1.13.0-3ubuntu0.2
Ubuntu 18.04 LTS:
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:
https://ubuntu.com/security/notices/USN-5445-1
CVE-2018-11782, CVE-2019-0203, CVE-2020-17525
Package Information:
https://launchpad.net/ubuntu/+source/subversion/1.13.0-3ubuntu0.2
https://launchpad.net/ubuntu/+source/subversion/1.9.7-4ubuntu1.1