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patch: fix CVE-2019-20633

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* CVE detail: https://nvd.nist.gov/vuln/detail/CVE-2019-20633

* upstream tracking: https://savannah.gnu.org/bugs/index.php?56683

* Fixes potential for double free after incomplete fix for CVE-2018-6952
  - src/pch.c (another_hunk): Avoid invalid memory access in context format
    diffs.

(From OE-Core rev: af4fbea9a1656bdf95d85831cae13cae3a60d5ee)

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit be71dd2cc16a4c0d244a76a748f08ca0d9bfeba0)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Murray
2020-12-30 17:44:18 -05:00
committed by Richard Purdie
parent 0071443633
commit cd3abf42da
2 changed files with 32 additions and 0 deletions
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meta/recipes-devtools/patch/patch_2.7.6.bb
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@@ -10,6 +10,7 @@ SRC_URI += "file://0001-Unset-need_charset_alias-when-building-for-musl.patch \
file://0001-Invoke-ed-directly-instead-of-using-the-shell.patch \
file://0001-Don-t-leak-temporary-file-on-failed-ed-style-patch.patch \
file://0001-Don-t-leak-temporary-file-on-failed-multi-file-ed.patch \
file://CVE-2019-20633.patch \
"
SRC_URI[md5sum] = "4c68cee989d83c87b00a3860bcd05600"