rhsa-2024_1610
Vulnerability from csaf_redhat
Published
2024-04-02 16:08
Modified
2024-11-06 05:22
Summary
Red Hat Security Advisory: less security update
Notes
Topic
An update for less 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.
Details
The "less" utility is a text file browser that resembles "more", but allows users to move backwards in the file as well as forwards. Since "less" does not read the entire input file at startup, it also starts more quickly than ordinary text editors.
Security Fix(es):
* less: missing quoting of shell metacharacters in LESSCLOSE handling (CVE-2022-48624)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
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.
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"name": "Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)"
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"category": "description",
"text": "A flaw was found in less. The close_altfile() function in filename.c omits shell_quote calls for LESSCLOSE, a command line to invoke the optional input postprocessor. This issue could lead to an OS command injection vulnerability and arbitrary command execution on the host operating system.",
"title": "Vulnerability description"
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"text": "less: missing quoting of shell metacharacters in LESSCLOSE handling",
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"text": "To exploit this issue, an attacker needs the ability to influence the LESSCLOSE environment variable. This requirement makes this CVE a Moderate impact CVE.",
"title": "Statement"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"BaseOS-8.9.0.Z.MAIN:less-debugsource-0:530-2.el8_9.aarch64",
"BaseOS-8.9.0.Z.MAIN:less-debugsource-0:530-2.el8_9.ppc64le",
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"BaseOS-8.9.0.Z.MAIN:less-debugsource-0:530-2.el8_9.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "less: missing quoting of shell metacharacters in LESSCLOSE handling"
}
]
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.