CVE-2017-8291 on CISA KEV

Artifex Ghostscript through 2017-04-26 allows -dSAFER bypass and remote command execution via .rsdparams type confusion with a "/OutputFile (%pipe%" substring in a crafted .eps document that is an input to the gs program, as exploited in the wild in April 2017.

01What CISA says about this vulnerability

Artifex Ghostscript through 2017-04-26 allows -dSAFER bypass and remote command execution via .rsdparams type confusion with a "/OutputFile (%pipe%" substring in a crafted .eps document that is an input to the gs program, as exploited in the wild in April 2017.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.debian.org — http://www.debian.org/security/2017/dsa-3838
• bugzilla.suse.com — https://bugzilla.suse.com/show_bug.cgi?id=1036453
• access.redhat.com — https://access.redhat.com/errata/RHSA-2017:1230
• www.securityfocus.com — http://www.securityfocus.com/bid/98476
• www.exploit-db.com — https://www.exploit-db.com/exploits/41955/
• openwall.com — http://openwall.com/lists/oss-security/2017/04/28/2
• security.gentoo.org — https://security.gentoo.org/glsa/201708-06
• bugzilla.redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=1446063
• git.ghostscript.com — https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=04b37bbce174eed24edec…
• bugs.ghostscript.com — https://bugs.ghostscript.com/show_bug.cgi?id=697808

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
n	a / n/a	n/a

06Detection

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