CVE-2018-16509
CVE-2018-16509
Vexday Risk Score
84Fix now
SSVC decision (CISA)
Act
Exploitation + impact → act immediately
Exploit maturity
Functional exploit
Popular PoC on GitHub (60 stars) — exploitation code widely available.
CVSS —EPSS 92.5%KEV nãoPoC públicaNuclei —Metasploit simPatch referenciado
Lifecycle
21 Aug 2018Metasploit module available
05 Sep 2018Published on NVD
10 Sep 2018Public PoC
Weaponization speed
5 daysto first PoC
Weaponized quickly — attackers prioritized this vulnerability. Patch urgently.
Recommendation: Patch as soon as possible — active exploitation confirmed.
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.
Affected products
n/a · n/apublic PoCs found — 7
githubgithub.com/farisv/PIL-RCE-Ghostscript-CVE-2018-16509★ 60githubgithub.com/knqyf263/CVE-2018-16509★ 3githubgithub.com/rhpco/CVE-2018-16509★ 1githubgithub.com/cved-sources/cve-2018-16509★ 0exploitdbwww.exploit-db.com/exploits/45369unverifiedcve_referencewww.exploit-db.com/exploits/45369/unverifiedvulncheckvulncheck.com/xdb/cb9953ec760cunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=5516c614dc33662a2afdc377159f70218e67bde5http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=78911a01b67d590b4a91afac2e8417360b934156http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=79cccf641486a6595c43f1de1cd7ade696020a31http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=520bb0ea7519aa3e79db78aaf0589dae02103764https://access.redhat.com/errata/RHSA-2018:2918https://access.redhat.com/errata/RHSA-2018:3760https://bugs.ghostscript.com/show_bug.cgi?id=699654http://seclists.org/oss-sec/2018/q3/142https://lists.debian.org/debian-lts-announce/2018/09/msg00015.htmlhttps://security.gentoo.org/glsa/201811-12https://usn.ubuntu.com/3768-1/https://www.artifex.com/news/ghostscript-security-resolved/