* 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. Signed-off-by: Scott Murray <scott.mur...@konsulko.com> --- .../patch/patch/CVE-2019-20633.patch | 31 +++++++++++++++++++ meta/recipes-devtools/patch/patch_2.7.6.bb | 1 + 2 files changed, 32 insertions(+) create mode 100644 meta/recipes-devtools/patch/patch/CVE-2019-20633.patch diff --git a/meta/recipes-devtools/patch/patch/CVE-2019-20633.patch b/meta/recipes-devtools/patch/patch/CVE-2019-20633.patch new file mode 100644 index 0000000000..03988a179c --- /dev/null +++ b/meta/recipes-devtools/patch/patch/CVE-2019-20633.patch @@ -0,0 +1,31 @@ +From 15b158db3ae11cb835f2eb8d2eb48e09d1a4af48 Mon Sep 17 00:00:00 2001 +From: Andreas Gruenbacher <agr...@gnu.org> +Date: Mon, 15 Jul 2019 19:10:02 +0200 +Subject: Avoid invalid memory access in context format diffs + +* src/pch.c (another_hunk): Avoid invalid memory access in context format +diffs. + +CVE: CVE-2019-20633 +Upstream-Status: Backport[https://git.savannah.gnu.org/cgit/patch.git/patch/?id=15b158db3ae11cb835f2eb8d2eb48e09d1a4af48] +Signed-off-by: Scott Murray <scott.mur...@konsulko.com> + +--- + src/pch.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/src/pch.c b/src/pch.c +index a500ad9..cb54e03 100644 +--- a/src/pch.c ++++ b/src/pch.c +@@ -1328,6 +1328,7 @@ another_hunk (enum diff difftype, bool rev) + ptrn_prefix_context = context; + ptrn_suffix_context = context; + if (repl_beginning ++ || p_end <= 0 + || (p_end + != p_ptrn_lines + 1 + (p_Char[p_end - 1] == '\n'))) + { +-- +cgit v1.2.1 + diff --git a/meta/recipes-devtools/patch/patch_2.7.6.bb b/meta/recipes-devtools/patch/patch_2.7.6.bb index b5897b357a..1997af0c25 100644 --- a/meta/recipes-devtools/patch/patch_2.7.6.bb +++ b/meta/recipes-devtools/patch/patch_2.7.6.bb @@ -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" -- 2.26.2
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#146315): https://lists.openembedded.org/g/openembedded-core/message/146315 Mute This Topic: https://lists.openembedded.org/mt/79323792/21656 Group Owner: openembedded-core+ow...@lists.openembedded.org Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
