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ghostscript: CVE-2019-14869

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A flaw was found in all versions of ghostscript 9.x before 9.28,
where the `.charkeys` procedure, where it did not properly secure
its privileged calls, enabling scripts to bypass `-dSAFER` restrictions.
An attacker could abuse this flaw by creating a specially crafted
PostScript file that could escalate privileges within the Ghostscript
and access files outside of restricted areas or execute commands.

References:
https://nvd.nist.gov/vuln/detail/CVE-2019-14869

Upstream patches:
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=485904

(From OE-Core rev: 0bb88ac63b4e1728373c6425477a32f7a6362b2c)

(From OE-Core rev: 9827b7df6f008f4384bbe22beeb0fe6adfeb36d6)

Signed-off-by: Stefan Ghinea <stefan.ghinea@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Stefan Ghinea
2019-11-21 17:28:04 +02:00
committed by Richard Purdie
parent 5d50b0549e
commit bb702471b5
2 changed files with 71 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta/recipes-extended/ghostscript/ghostscript_9.27.bb
+1
View File
@@ -28,6 +28,7 @@ SRC_URI_BASE = "https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/d
file://CVE-2019-14811-0001.patch \
file://CVE-2019-14817-0001.patch \
file://CVE-2019-14817-0002.patch \
file://CVE-2019-14869-0001.patch \
"
SRC_URI = "${SRC_URI_BASE} \