var-201803-1130
Vulnerability from variot
The add_job function in scheduler/ipp.c in CUPS before 2.2.6, when D-Bus support is enabled, can be crashed by remote attackers by sending print jobs with an invalid username, related to a D-Bus notification. CUPS Contains an input validation vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. Apple CUPS (Common Unix Printing System) is an open source printing system for OS X and Unix-like systems developed by Apple. The system is based on the Internet Printing Protocol (IPP) and provides most PostScript and raster printer services. A security vulnerability exists in the 'add_job' function in Apple CUPS versions prior to 2.2.6. ========================================================================== Ubuntu Security Notice USN-3713-1 July 11, 2018
cups vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in CUPS. A remote attacker could possibly use this issue to cause CUPS to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 17.10 and Ubuntu 18.04 LTS. (CVE-2017-18248)
Dan Bastone discovered that the CUPS dnssd backend incorrectly handled certain environment variables. A local attacker could possibly use this issue to escalate privileges. (CVE-2018-4180)
Eric Rafaloff and John Dunlap discovered that CUPS incorrectly handled certain include directives. A local attacker could possibly use this issue to read arbitrary files. (CVE-2018-4181)
Dan Bastone discovered that the CUPS AppArmor profile incorrectly confined the dnssd backend. A local attacker could possibly use this issue to escape confinement. (CVE-2018-6553)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: cups 2.2.7-1ubuntu2.1
Ubuntu 17.10: cups 2.2.4-7ubuntu3.1
Ubuntu 16.04 LTS: cups 2.1.3-4ubuntu0.5
Ubuntu 14.04 LTS: cups 1.7.2-0ubuntu1.10
In general, a standard system update will make all the necessary changes.
References: https://usn.ubuntu.com/usn/usn-3713-1 CVE-2017-18248, CVE-2018-4180, CVE-2018-4181, CVE-2018-6553
Package Information: https://launchpad.net/ubuntu/+source/cups/2.2.7-1ubuntu2.1 https://launchpad.net/ubuntu/+source/cups/2.2.4-7ubuntu3.1 https://launchpad.net/ubuntu/+source/cups/2.1.3-4ubuntu0.5 https://launchpad.net/ubuntu/+source/cups/1.7.2-0ubuntu1.10
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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