Headline
Ubuntu Security Notice USN-5820-1
Ubuntu Security Notice 5820-1 - Lorenz Hipp discovered a flaw in exuberant-ctags handling of the tag filename command-line argument. A crafted tag filename specified in the command line or in the configuration file could result in arbitrary command execution.
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Ubuntu Security Notice USN-5820-1
January 24, 2023
exuberant-ctags vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
Summary:
Exuberant ctags could be make to perform arbitary command execution if run
with maliciously crafted user input
Software Description:
- exuberant-ctags: build tag file indexes of source code definitions
Details:
Lorenz Hipp discovered a flaw in exuberant-ctags handling of the tag
filename command-line argument. A crafted tag filename specified in the
command line or in the configuration file could result in arbitrary
command execution.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.10:
exuberant-ctags 1:5.9~svn20110310-16ubuntu0.22.10.1
Ubuntu 22.04 LTS:
exuberant-ctags 1:5.9~svn20110310-16ubuntu0.22.04.1
Ubuntu 20.04 LTS:
exuberant-ctags 1:5.9~svn20110310-12ubuntu0.1
Ubuntu 18.04 LTS:
exuberant-ctags 1:5.9~svn20110310-11ubuntu0.1
Ubuntu 16.04 ESM:
exuberant-ctags 1:5.9~svn20110310-11ubuntu0.1~esm1
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5820-1
CVE-2022-4515
Package Information:
https://launchpad.net/ubuntu/+source/exuberant-ctags/1:5.9~svn20110310-16ubuntu0.22.10.1
https://launchpad.net/ubuntu/+source/exuberant-ctags/1:5.9~svn20110310-16ubuntu0.22.04.1
https://launchpad.net/ubuntu/+source/exuberant-ctags/1:5.9~svn20110310-12ubuntu0.1
https://launchpad.net/ubuntu/+source/exuberant-ctags/1:5.9~svn20110310-11ubuntu0.1
Related news
Red Hat Security Advisory 2023-2863-01 - Ctags is a C programming language indexing and cross-reference tool.
An update for ctags is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-4515: A flaw was found in Exuberant Ctags in the way it handles the "-o" option. This option specifies the tag filename. A crafted tag filename specified in the command line or in the configuration file results in arbitrary command execution because the externalSortTags() in sort.c calls the system(3) function in an unsafe way.
A flaw was found in Exuberant Ctags in the way it handles the "-o" option. This option specifies the tag filename. A crafted tag filename specified in the command line or in the configuration file results in arbitrary command execution because the externalSortTags() in sort.c calls the system(3) function in an unsafe way.