Summary
It was discovered that CUPS incorrectly handled certain print jobs with
invalid usernames. 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)
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 14.04 LTS 14.04:LTS | cups | 1.7.2-0ubuntu1.10 |
| Ubuntu · 16.04 LTS 16.04:LTS | cups | 2.1.3-4ubuntu0.5 |
| Ubuntu · 18.04 LTS 18.04:LTS | cups | 2.2.7-1ubuntu2.1 |
Vulnerabilities 4
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Unscored —
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 a…
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Unscored —
In macOS High Sierra before 10.13.5, an issue existed in CUPS. This issue was addressed with improved access restrictio…
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Unscored —
In macOS High Sierra before 10.13.5, an issue existed in CUPS. This issue was addressed with improved access restrictio…
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Unscored —
AppArmor cupsd Sandbox Bypass Due to Use of Hard Links
The CUPS AppArmor profile incorrectly confined the dnssd backend due to use of hard links. A local attacker could possibly use this issue to escape confinement. This flaw affects versions prior to 2.2.7-1ubuntu2.1 in Ubuntu 18.04 LTS, prior to 2.2.4-7ubuntu3.…