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Ubuntu Security Notice USN-5445-1

Ubuntu Security Notice USN-5445-1
Posted May 26, 2022
Authored by Ubuntu | Site security.ubuntu.com

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.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2018-11782, CVE-2019-0203, CVE-2020-17525
SHA-256 | c99bfd8642d47931efcc9e47a22f2772a79bf4aba985bd65311c0c0f49f18485

Ubuntu Security Notice USN-5445-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5445-1
May 26, 2022

subversion vulnerabilities
==========================================================================

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
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