Your message dated Thu, 05 Dec 2019 06:31:00 +0000
with message-id <[email protected]>
and subject line Bug#945793: Removed package(s) from unstable
has caused the Debian Bug report #878731,
regarding gif2png: NULL pointer dereference when running with -r option
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact [email protected]
immediately.)
--
878731: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878731
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: gif2png
Version: 2.5.8-1+b2
Severity: normal
Dear Maintainer,
Running 'gif2png -r' with the attached file raises a NULL pointer
dereference, which may allow a denial-of-service attack of a malicious
attacker.
I expected the program to terminate without segfault, but the program
crashes as follow.
----------------------------
(gdb) r -r poc
Starting program: /usr/bin/gif2png -r poc
gif2png: bad version number, not '87a' or '89a', trying anyway
gif2png: error in reading DataBlock
gif2png: EOF / read error on image data
Program received signal SIGSEGV, Segmentation fault.
strlen () at ../sysdeps/x86_64/strlen.S:106
106 ../sysdeps/x86_64/strlen.S: No such file or directory.
(gdb) x/i $rip
=> 0x7ffff7887646 <strlen+38>: movdqu (%rax),%xmm4
(gdb) i r rax
rax 0x0 0
-----------------------------
The bug was found with a fuzzer developed by 'SoftSec' group at KAIST.
-- System Information:
Debian Release: 9.2
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.9.0-3-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages gif2png depends on:
ii libc6 2.24-11+deb9u1
ii libpng16-16 1.6.28-1
Versions of packages gif2png recommends:
ii python 2.7.13-2
gif2png suggests no packages.
-- no debconf information
poc
Description: Binary data
--- End Message ---
--- Begin Message ---
Version: 2.5.8-1+rm
Dear submitter,
as the package gif2png has just been removed from the Debian archive
unstable we hereby close the associated bug reports. We are sorry
that we couldn't deal with your issue properly.
For details on the removal, please see https://bugs.debian.org/945793
The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.
Please note that the changes have been done on the master archive and
will not propagate to any mirrors until the next dinstall run at the
earliest.
This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
[email protected].
Debian distribution maintenance software
pp.
Scott Kitterman (the ftpmaster behind the curtain)
--- End Message ---
