zlib: backport security fix for a reproducible crash in compressor
authorPetr Štetiar <ynezz@true.cz>
Thu, 24 Mar 2022 05:45:04 +0000 (06:45 +0100)
committerRISCi_ATOM <bob@bobcall.me>
Mon, 28 Mar 2022 16:57:11 +0000 (12:57 -0400)
commit3e106e312acb71d5f3289543a5e1eeb189c69550
tree55e330ebb4ffd205740a7f34e1b5a003957b62ae
parentf5959df40ad7b1b61b58086532c35dbe47ebf21c
zlib: backport security fix for a reproducible crash in compressor

Tavis has just reported, that he was recently trying to track down a
reproducible crash in a compressor. Believe it or not, it really was a
bug in zlib-1.2.11 when compressing (not decompressing!) certain inputs.

Tavis has reported it upstream, but it turns out the issue has been
public since 2018, but the patch never made it into a release. As far as
he knows, nobody ever assigned it a CVE.

Runtime tested on ipq40xx/glinet-b1300 and mvebu/turris-omnia.

Suggested-by: Tavis Ormandy <taviso@gmail.com>
References: https://www.openwall.com/lists/oss-security/2022/03/24/1
Signed-off-by: Petr Štetiar <ynezz@true.cz>
(cherry picked from commit b3aa2909a79aeff20d594160b207a89dc807c033)
(cherry picked from commit 3965dda0fa70dc9408f1a2e55a3ddefde78bd50e)
(cherry picked from commit f65edc9b990c2bcc10c9e9fca29253adc6fe316d)
package/libs/zlib/Makefile
package/libs/zlib/patches/006-fix-compressor-crash-on-certain-inputs.patch [new file with mode: 0644]
tools/zlib/Makefile
tools/zlib/patches/006-fix-compressor-crash-on-certain-inputs.patch [new file with mode: 0644]