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Fwd: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes)
From: Ramon de C Valle <rdecvalle () vmware com>
Date: Wed, 9 Jul 2014 15:45:10 +0000
I believe this should have a CVE assigned. Begin forwarded message:
From: <wkwood () gmail com> Subject: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Date: July 9, 2014 at 11:40:24 AM GMT-3 To: <ruby-core () ruby-lang org> Reply-To: Ruby developers <ruby-core () ruby-lang org> Issue #10019 has been reported by Will Wood. ---------------------------------------- Bug #10019: segmentation fault/buffer overrun in pack.c (encodes) https://urldefense.proofpoint.com/v1/url?u=https://bugs.ruby-lang.org/issues/10019&k=oIvRg1%2BdGAgOoM1BIlLLqw%3D%3D%0A&r=bZpuVimtRQUx3xHFIlu%2BaciWn3GMzM%2FBnwDoBm5jP8U%3D%0A&m=i9HlGlVd0nBJk%2BZe%2FE83Lobm3nDyfJz6diLiqhjIJ8k%3D%0A&s=d306e2eedebf0fbb994e9059e7e7cdccfe735fd21518df0da6bf00045bccc481 * Author: Will Wood * Status: Open * Priority: Normal * Assignee: * Category: core * Target version: * ruby -v: ruby 2.1.2p168 (2014-07-06 revision 46721) [i386-mingw32] * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- While working with an AWS sample I hit a segmentation fault. The same sample works under 1.9.3. It appeared to be coming from pack.c function encodes. After looking at the source there's a 4K buffer allocated on the stack. I made a minor change to base the buffer length off of the incoming buffer length with a pad and allocate it off the heap. Anyway, after fixing this my code sample runs fine. I'm including a patch file and the sample code. ---Files-------------------------------- pack.patch (2.74 KB) BucketTest.rb (326 Bytes) -- https://urldefense.proofpoint.com/v1/url?u=https://bugs.ruby-lang.org/&k=oIvRg1%2BdGAgOoM1BIlLLqw%3D%3D%0A&r=bZpuVimtRQUx3xHFIlu%2BaciWn3GMzM%2FBnwDoBm5jP8U%3D%0A&m=i9HlGlVd0nBJk%2BZe%2FE83Lobm3nDyfJz6diLiqhjIJ8k%3D%0A&s=85d6801be84da3628afd395bab2490b015b184aee10d0635d471b167d41ab70b
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Current thread:
- Fwd: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Ramon de C Valle (Jul 09)
- Re: Fwd: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Murray McAllister (Jul 09)
- Re: Fwd: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Tomas Hoger (Jul 10)
- Re: Fwd: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Ramon de C Valle (Jul 10)
- Re: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Ramon de C Valle (Jul 10)
- Re: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Ramon de C Valle (Jul 14)
- Re: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Kurt Seifried (Jul 14)
- Re: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) cve-assign (Jul 14)
- Re: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Ramon de C Valle (Jul 15)
- Re: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) cve-assign (Jul 15)
- Re: Re: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Tomas Hoger (Jul 16)
- Re: Fwd: [ruby-core:63604] [ruby-trunk - Bug #10019] [Open] segmentation fault/buffer overrun in pack.c (encodes) Ramon de C Valle (Jul 10)