Glyph & Cog xpdf

• CVE-2020-25725 Medium 5.0 In Xpdf 4.02, SplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079 is trying to use the freed `t3GlyphStack->cache`, which causes an `heap-use-after-free` problem. The codes of a pre 1.0%