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CVE-2018-19409

ghostscript: Improperly implemented security check in zsetdevice function in psi/zdevice.c

An issue was discovered in Artifex Ghostscript before 9.26. LockSafetyParams is not checked correctly if another device is used.

CVSS 3.0 · 9.8 Critical EPSS 7.8% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Ubuntu Linux Debian Linux and 6 more
CVE-2018-19134

ghostscript: Type confusion in setpattern (700141)

In Artifex Ghostscript through 9.25, the setpattern operator did not properly validate certain types. A specially crafted PostScript document could exploit this to crash Ghostscript or, possibly, execute arbitrary code in the context of the Ghostscript process. This is a type confusion issue because of failure to check whether the Implementation of a pattern dictionary was a structure type.

CVSS 3.0 · 7.8 High EPSS 2.8% KEV · Not listed
Vendors
Artifex Debian Redhat
Products
Ghostscript Debian Linux Enterprise Linux and 5 more
CVE-2018-18073

ghostscript: Saved execution stacks can leak operator arrays

Artifex Ghostscript allows attackers to bypass a sandbox protection mechanism by leveraging exposure of system operators in the saved execution stack in an error object.

CVSS 3.1 · 6.3 Medium EPSS 2.7% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Ubuntu Linux Debian Linux and 7 more
CVE-2018-17961

ghostscript: Saved execution stacks can leak operator arrays (incomplete fix for CVE-2018-17183)

Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via vectors involving errorhandler setup. NOTE: this issue exists because of an incomplete fix for CVE-2018-17183.

CVSS 3.0 · 8.6 High EPSS 10.0% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Ubuntu Linux Debian Linux and 7 more
CVE-2018-17183

ghostscript: User-writable error exception table

Artifex Ghostscript before 9.25 allowed a user-writable error exception table, which could be used by remote attackers able to supply crafted PostScript to potentially overwrite or replace error handlers to inject code.

CVSS 3.0 · 7.8 High EPSS 1.8% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Ubuntu Linux Debian Linux and 7 more
CVE-2018-16863

ghostscript: incomplete fix for CVE-2018-16509

It was found that RHSA-2018:2918 did not fully fix CVE-2018-16509. An attacker could possibly exploit another variant of the flaw and bypass the -dSAFER protection to, for example, execute arbitrary shell commands via a specially crafted PostScript document. This only affects ghostscript 9.07 as shipped with Red Hat Enterprise Linux 7.

CVSS 3.0 · 7.3 High EPSS 1.2% KEV · Not listed
Vendors
Artifex Redhat
Products
Ghostscript Enterprise Linux Enterprise Linux Desktop and 5 more
CVE-2018-16802

ghostscript: Incorrect "restoration of privilege" checking when running out of stack during exception handling

An issue was discovered in Artifex Ghostscript before 9.25. Incorrect "restoration of privilege" checking when running out of stack during exception handling could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction. This is due to an incomplete fix for CVE-2018-16509.

CVSS 3.0 · 7.8 High EPSS 2.1% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Ubuntu Linux Debian Linux and 7 more
CVE-2018-16585

ghostscript: .setdistillerkeys PostScript command is accepted even though it is not intended for use

An issue was discovered in Artifex Ghostscript before 9.24. The .setdistillerkeys PostScript command is accepted even though it is not intended for use during document processing (e.g., after the startup phase). This leads to memory corruption, allowing remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact. Note: A reputable source believes that the CVE is potentially a duplicate of CVE-2018-15910 as explained in Red Hat bugzilla (https://bugzilla.redhat.com/show_bug.cgi?id=1626193)

CVSS 3.0 · 7.8 High EPSS 1.7% KEV · Not listed
Vendors
Artifex Canonical Debian
Products
Ghostscript Ubuntu Linux Debian Linux
CVE-2018-16542

ghostscript: .definemodifiedfont memory corruption if /typecheck is handled (699668)

In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files could use insufficient interpreter stack-size checking during error handling to crash the interpreter.

CVSS 3.0 · 5.5 Medium EPSS 1.9% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Ubuntu Linux Debian Linux and 5 more
CVE-2018-16541

ghostscript: Incorrect free logic in pagedevice replacement (699664)

In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files could use incorrect free logic in pagedevice replacement to crash the interpreter.

CVSS 3.0 · 5.5 Medium EPSS 1.4% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Ubuntu Linux Debian Linux and 7 more
CVE-2018-16540

ghostscript: use-after-free in copydevice handling (699661)

In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files to the builtin PDF14 converter could use a use-after-free in copydevice handling to crash the interpreter or possibly have unspecified other impact.

CVSS 3.0 · 7.8 High EPSS 1.6% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Ubuntu Linux Debian Linux and 8 more
CVE-2018-16539

ghostscript: incorrect access checking in temp file handling to disclose contents of files (699658)

In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files could use incorrect access checking in temp file handling to disclose contents of files on the system otherwise not readable.

CVSS 3.0 · 5.5 Medium EPSS 1.4% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Ubuntu Linux Debian Linux and 7 more
CVE-2018-16513

ghostscript: setcolor missing type check (699655)

In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files could use a type confusion in the setcolor function to crash the interpreter or possibly have unspecified other impact.

CVSS 3.0 · 7.8 High EPSS 1.5% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Gpl Ghostscript Ubuntu Linux and 2 more
CVE-2018-16511

ghostscript: missing type check in type checker (699659)

An issue was discovered in Artifex Ghostscript before 9.24. A type confusion in "ztype" could be used by remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact.

CVSS 3.0 · 7.8 High EPSS 1.9% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Ubuntu Linux Debian Linux and 7 more
CVE-2018-16510

ghostscript: Incorrect exec stack handling in the "CS" and "SC" PDF primitives (699671)

An issue was discovered in Artifex Ghostscript before 9.24. Incorrect exec stack handling in the "CS" and "SC" PDF primitives could be used by remote attackers able to supply crafted PDFs to crash the interpreter or possibly have unspecified other impact.

CVSS 3.0 · 7.8 High EPSS 1.7% KEV · Not listed
Vendors
Artifex Canonical
Products
Ghostscript Gpl Ghostscript Ubuntu Linux
CVE-2018-16509

ghostscript: /invalidaccess bypass after failed restore (699654)

An issue was discovered in Artifex Ghostscript before 9.24. Incorrect "restoration of privilege" checking during handling of /invalidaccess exceptions could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction.

CVSS 3.0 · 7.8 High EPSS 92.3% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
Ghostscript Gpl Ghostscript Ubuntu Linux and 6 more
CVE-2018-15911

ghostscript: Uninitialized memory access in the aesdecode operator (699665)

In Artifex Ghostscript 9.23 before 2018-08-24, attackers able to supply crafted PostScript could use uninitialized memory access in the aesdecode operator to crash the interpreter or potentially execute code.

CVSS 3.0 · 7.8 High EPSS 3.0% KEV · Not listed
Vendors
Artifex Canonical Debian and 2 more
Products
Ghostscript Gpl Ghostscript Ubuntu Linux and 9 more
CVE-2018-15910

ghostscript: LockDistillerParams type confusion (699656)

In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files could use a type confusion in the LockDistillerParams parameter to crash the interpreter or execute code.

CVSS 3.0 · 7.8 High EPSS 3.0% KEV · Not listed
Vendors
Artifex Canonical Debian and 2 more
Products
Ghostscript Gpl Ghostscript Ubuntu Linux and 7 more