Bug#909076: ghostscript: ps2ascii crashes: Error: /typecheck in --.bind--
hi,
On Tue, Sep 18, 2018 at 09:58:10AM +0200, Mattia Rizzolo wrote:
> Package: ghostscript
> Version: 9.20~dfsg-3.2+deb9u5
> Severity: serious
> X-Debbugs-CC: team@security.debian.org, Moritz Mühlenhoff <jmm@debian.org>, reproducible-builds@lists.alioth.debian.org
> Control: affects -1 diffoscope
>
> Dear maintainer,
>
> after the latest ghostscript security update, ps2ascii started to crash:
>
> |% ps2ascii /build/diffoscope-101~bpo9+1/.pybuild/pythonX.Y_3.5/build/tests/data/test1.ps
> |Error: /typecheck in --.bind--
> |Operand stack:
> | --nostringval-- false setshared true --dict:30/32(L)-- typecheck --nostringval-- currentglobal .currentglobal
> |Execution stack:
> | %interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1998 2 3 %oparray_pop 1997 2 3 %oparray_pop 1981 2 3 %oparray_pop 1868 2 3 %oparray_pop --nostringval-- %errorexec_pop .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- 2009 3 3 %oparray_pop --nostringval-- --nostringval-- --dict:1267/1684(G)-- --nostringval-- 1936 %dict_continue --nostringval-- 1974 9 4 %oparray_pop --nostringval--
> |Dictionary stack:
> | --dict:1267/1684(G)-- --dict:0/20(G)-- --dict:81/200(L)-- --dict:1267/1684(G)--
> |Current allocation mode is global
> |Current file position is 44643
> |GPL Ghostscript 9.20: Unrecoverable error, exit code 1
>
>
> Downgrading to 9.20~dfsg-3.2+deb9u4 shows the problem is limited to the
> latest update:
>
> |% ps2ascii /build/diffoscope-101~bpo9+1/.pybuild/pythonX.Y_3.5/build/tests/data/test1.ps
> |
> |
> |Today's date: February 28, 2016
> |
> |1
>
>
> This also causes diffoscope (both 78 in stretch and whatever is in
> stretch-backports at the moment) to FTBFS.
Some updates:
The issue is triggered by the
025_fb713b3818b52d8a6cf62c951eba2e1795ff9624.patch patch, which is
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=fb713b3818b52d8a6cf62c951eba2e1795ff9624
.
Ghostscript built from git on fb713b3818b52d8a6cf62c951eba2e1795ff9624
does not seem to tigger the same problem, so if this is correct, we
might miss a prerequisite to fb713b3818b52d8a6cf62c951eba2e1795ff9624
.
Regards,
Salvatore
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