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dc1a3be255
shadow-utils: possible password leak during passwd(1) change (From OE-Core rev: 734a3e1fb5ee8ded3097a94c7ee8696518346166) Signed-off-by: Soumya Sambu <soumya.sambu@windriver.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>
37 lines
1.1 KiB
Diff
37 lines
1.1 KiB
Diff
From 58b6e97a9eef866e9e479fb781aaaf59fb11ef36 Mon Sep 17 00:00:00 2001
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From: Christian Göttsche <cgzones@googlemail.com>
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Date: Mon Apr 25 12:17:40 2022 +0200
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Subject: [PATCH 1/2] passwd: erase password copy on all error branches
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CVE: CVE-2023-4641
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Upstream-Status: Backport [https://github.com/shadow-maint/shadow/commit/58b6e97a9eef866e9e479fb781aaaf59fb11ef36]
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Signed-off-by: Soumya Sambu <soumya.sambu@windriver.com>
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---
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src/passwd.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/src/passwd.c b/src/passwd.c
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index 80531ec..8c6f81a 100644
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--- a/src/passwd.c
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+++ b/src/passwd.c
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@@ -289,6 +289,7 @@ static int new_password (const struct passwd *pw)
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cp = getpass (_("New password: "));
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if (NULL == cp) {
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memzero (orig, sizeof orig);
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+ memzero (pass, sizeof pass);
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return -1;
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}
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if (warned && (strcmp (pass, cp) != 0)) {
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@@ -316,6 +317,7 @@ static int new_password (const struct passwd *pw)
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cp = getpass (_("Re-enter new password: "));
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if (NULL == cp) {
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memzero (orig, sizeof orig);
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+ memzero (pass, sizeof pass);
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return -1;
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}
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if (strcmp (cp, pass) != 0) {
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--
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2.40.0
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