guix/gnu/packages/patches/bsdiff-CVE-2014-9862.patch
Léo Le Bouter b66fc0a64b
gnu: bsdiff: Fix CVE-2014-9862.
* gnu/packages/patches/bsdiff-CVE-2014-9862.patch: New patch.
* gnu/local.mk (dist_patch_DATA): Register it.
* gnu/packages/compression.scm (bsdiff): Apply it.
2021-03-10 09:54:27 +01:00

15 lines
304 B
Diff

diff --git a/bspatch.c b/bspatch.c
index 8d95633..ab77722 100644
--- a/bspatch.c
+++ b/bspatch.c
@@ -187,6 +187,10 @@
};
/* Sanity-check */
+ if ((ctrl[0] < 0) || (ctrl[1] < 0))
+ errx(1,"Corrupt patch\n");
+
+ /* Sanity-check */
if(newpos+ctrl[0]>newsize)
errx(1,"Corrupt patch\n");