Important: subversion:1.10 security update
Summary
ALSA-2019:2512: Important: subversion:1.10 security update. Affects libserf across 3 version ranges.
< 1.3.9-9.module_el8.3.0+2053+ac338b6d
< 1.3.9-9.module_el8.4.0+2266+ac338b6d
< 1.3.9-9.module_el8.6.0+2912+eb1cdf5a
Fixed in 1.3.9-9.module_el8.3.0+2053+ac338b6d, 1.3.9-9.module_el8.4.0+2266+ac338b6d or 1.3.9-9.module_el8.6.0+2912+eb1cdf5a, depending on the release line you run. How to fix ↓
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Background
Subversion (SVN) is a concurrent version control system that facilitates collaboration in developing and maintaining files and directories while preserving a history of changes. It is widely used in software development projects to manage source code and track revisions. This vulnerability affects the subversion package version 1.10.
Vulnerability Detail
The vulnerability identified as CVE-2019-0203 is a NULL pointer dereference issue in svnserve, a component of Subversion. It can be exploited by an unauthenticated remote attacker to cause a denial-of-service (DoS) condition. By sending a specially crafted request, the attacker can trigger a NULL pointer dereference, leading to a crash of the svnserve process and rendering the service unavailable. This vulnerability has been rated as important.
How To Fix
Fixed versions by release line
The minimum fixed version depends on the release line you run.
sudo dnf update libserf-
< 1.3.9-9.module_el8.3.0+2053+ac338b6d1.3.9-9.module_el8.3.0+2053+ac338b6d -
< 1.3.9-9.module_el8.4.0+2266+ac338b6d1.3.9-9.module_el8.4.0+2266+ac338b6d -
< 1.3.9-9.module_el8.6.0+2912+eb1cdf5a1.3.9-9.module_el8.6.0+2912+eb1cdf5a
Tip — Not sure which release line you're on? Vulert can find the fix for the version you are using. Scan free →
Workaround
There is no known workaround for this vulnerability. It is recommended to apply the security update as soon as possible.
Conclusion
In conclusion, it is crucial to update the subversion package to version 1.10 or later to mitigate the risk of this vulnerability. By applying the security update, you can protect your system from potential denial-of-service attacks. For further assistance or support in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for libserf →
FAQ
Subversion (SVN) is a concurrent version control system that enables collaboration in developing and maintaining files and directories while preserving a history of changes. It is widely used in software development projects to manage source code and track revisions.
A NULL pointer dereference occurs when a program attempts to access or manipulate memory using a pointer that is not pointing to a valid memory location (i.e., it has the value NULL). This can lead to crashes or other unexpected behavior.
A denial-of-service (DoS) attack is an attempt to disrupt the normal functioning of a system or network by overwhelming it with a flood of illegitimate requests or by exploiting vulnerabilities to cause a crash or unavailability of services.
An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted request to the svnserve component of Subversion. This request triggers a NULL pointer dereference, causing the svnserve process to crash and rendering the service unavailable.
The impact of this vulnerability is a denial-of-service (DoS) condition, where the svnserve process crashes and becomes unavailable. This can disrupt software development projects that rely on Subversion for source code management and revision tracking.
References
Related vulnerabilities
Recent vulnerabilities recorded for libserf.
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