diff options
Diffstat (limited to 'gnu/packages/patches/mupdf-CVE-2016-6265.patch')
| -rw-r--r-- | gnu/packages/patches/mupdf-CVE-2016-6265.patch | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/gnu/packages/patches/mupdf-CVE-2016-6265.patch b/gnu/packages/patches/mupdf-CVE-2016-6265.patch deleted file mode 100644 index 58f5c3726c..0000000000 --- a/gnu/packages/patches/mupdf-CVE-2016-6265.patch +++ /dev/null @@ -1,30 +0,0 @@ -Fix CVE-2016-6265 (use after free in pdf_load_xref()). - -https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6265 -https://security-tracker.debian.org/tracker/CVE-2016-6265 - -Patch copied from upstream source repository: - -http://git.ghostscript.com/?p=mupdf.git;h=fa1936405b6a84e5c9bb440912c23d532772f958 - -diff --git a/source/pdf/pdf-xref.c b/source/pdf/pdf-xref.c -index 576c315..3222599 100644 ---- a/source/pdf/pdf-xref.c -+++ b/source/pdf/pdf-xref.c -@@ -1184,8 +1184,14 @@ pdf_load_xref(fz_context *ctx, pdf_document *doc, pdf_lexbuf *buf) - fz_throw(ctx, FZ_ERROR_GENERIC, "object offset out of range: %d (%d 0 R)", (int)entry->ofs, i); - } - if (entry->type == 'o') -- if (entry->ofs <= 0 || entry->ofs >= xref_len || pdf_get_xref_entry(ctx, doc, entry->ofs)->type != 'n') -- fz_throw(ctx, FZ_ERROR_GENERIC, "invalid reference to an objstm that does not exist: %d (%d 0 R)", (int)entry->ofs, i); -+ { -+ /* Read this into a local variable here, because pdf_get_xref_entry -+ * may solidify the xref, hence invalidating "entry", meaning we -+ * need a stashed value for the throw. */ -+ fz_off_t ofs = entry->ofs; -+ if (ofs <= 0 || ofs >= xref_len || pdf_get_xref_entry(ctx, doc, ofs)->type != 'n') -+ fz_throw(ctx, FZ_ERROR_GENERIC, "invalid reference to an objstm that does not exist: %d (%d 0 R)", (int)ofs, i); -+ } - } - } - |