drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen beliebiger Kommandos in GNU Screen
Name: |
Ausführen beliebiger Kommandos in GNU Screen |
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ID: |
USN-4747-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10 |
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Datum: |
Mi, 24. Februar 2021, 22:59 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26937 |
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Applikationen: |
screen |
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Originalnachricht |
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --HeDD0LyarmIGH9aWnzN3MsvTfpznzWniX Content-Type: multipart/mixed; boundary="Xzq0T30EONQmLrcxVS0XrATH3io9DB604"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> Message-ID: <a0b669b3-5a1a-e200-c0cb-e2f7509b72b8@canonical.com> Subject: [USN-4747-1] GNU Screen vulnerability
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========================================================================== Ubuntu Security Notice USN-4747-1 February 24, 2021
screen vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS
Summary:
GNU Screen could be made to crash or run programs if it processed specially crafted character sequences.
Software Description: - screen: terminal multiplexer with VT100/ANSI terminal emulation
Details:
Felix Weinmann discovered that GNU Screen incorrectly handled certain character sequences. A remote attacker could use this issue to cause GNU Screen to crash, resulting in a denial of service, or possibly execute arbitrary code.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.10: screen 4.8.0-2ubuntu0.1
Ubuntu 20.04 LTS: screen 4.8.0-1ubuntu0.1
Ubuntu 18.04 LTS: screen 4.6.2-1ubuntu1.1
Ubuntu 16.04 LTS: screen 4.3.1-2ubuntu0.1
In general, a standard system update will make all the necessary changes.
References: https://usn.ubuntu.com/4747-1 CVE-2021-26937
Package Information: https://launchpad.net/ubuntu/+source/screen/4.8.0-2ubuntu0.1 https://launchpad.net/ubuntu/+source/screen/4.8.0-1ubuntu0.1 https://launchpad.net/ubuntu/+source/screen/4.6.2-1ubuntu1.1 https://launchpad.net/ubuntu/+source/screen/4.3.1-2ubuntu0.1
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