guix-devel/gnu/packages/patches/rpm-CVE-2014-8118.patch

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Fix CVE-2014-8118 (integer overflow allowing arbitrary remote code
execution via crafted CPIO header).
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8118
Source:
https://bugzilla.redhat.com/attachment.cgi?id=962159&action=diff
Adopted by Debian:
http://anonscm.debian.org/cgit/collab-maint/rpm.git/plain/debian/patches/CVE-2014-8118.patch
diff --git a/lib/cpio.c b/lib/cpio.c
index 253ff0f..600633a 100644
--- a/lib/cpio.c
+++ b/lib/cpio.c
@@ -399,6 +399,9 @@ int rpmcpioHeaderRead(rpmcpio_t cpio, char ** path, int * fx)
GET_NUM_FIELD(hdr.filesize, fsize);
GET_NUM_FIELD(hdr.namesize, nameSize);
+ if (nameSize <= 0 || nameSize > 4096) {
+ return RPMERR_BAD_HEADER;
+ }
char name[nameSize + 1];
read = Fread(name, nameSize, 1, cpio->fd);