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List: oss-security
Subject: Re: [oss-security] CVE request: heap corruption in libpango
From: Josh Bressers <bressers () redhat ! com>
Date: 2011-01-20 16:36:48
Message-ID: 1110969345.43645.1295541408005.JavaMail.root () zmail01 ! collab ! prod ! int ! phx2 ! redhat ! com
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Please use CVE-2011-0020 for this.
Thanks.
--
JB
----- Original Message -----
> From Launchpad [1]:
>
> "When used with FreeType2 as a backend, Pango is vulnerable to heap
> corruption when rendering malformed fonts. The vulnerability occurs in
> pango_ft2_font_render_box_glyph() in pango/pangoft2-render.c. A buffer
> is malloc'd with size box->bitmap.rows * box->bitmap.pitch.
> Subsequently, 0xff is written at offsets into this buffer without
> checking that these offsets fall within the buffer's boundaries,
> leading to heap corruption."
>
> -Dan
>
> [1] https://bugs.launchpad.net/ubuntu/+source/pango1.0/+bug/696616
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