#65 segfault in giftool on malformed input file

v1.0_(example)
closed
None
1
2015-09-10
2015-02-04
Hanno Böck
No

Attached file will cause a segfault in giftool. This looks simliar to issue #64, but it isn't the same (and still crashes with current git head).

Address Sanitizer trace:
==4172==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc 0x0000004046df sp 0x7fffc7456550 bp 0x60c00000bf80 T0)
#0 0x4046de in main /mnt/ram/giflib-code/util/giftool.c:561
#1 0x7f76d6c16f9f in __libc_start_main (/lib64/libc.so.6+0x1ff9f)
#2 0x408211 (/mnt/ram/giflib-code/util/giftool+0x408211)

(found with american fuzzy lop)

1 Attachments

Discussion

  • Eric S. Raymond

    Eric S. Raymond - 2015-05-28
    • status: open --> closed
    • assigned_to: Eric S. Raymond
     
  • Hanno Böck

    Hanno Böck - 2015-09-10

    I'm just reviewing old issues I reported, this was closed without a comment, but it still affects the latest git code, please re-open.

     

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