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From: Karel Zak <kzak@redhat.com>
Date: Thu, 21 Mar 2024 11:16:20 +0100
Subject: wall: fix escape sequence Injection [CVE-2024-28085]
Let's use for all cases the same output function.
Reported-by: Skyler Ferrante <sjf5462@rit.edu>
Signed-off-by: Karel Zak <kzak@redhat.com>
---
term-utils/wall.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/term-utils/wall.c b/term-utils/wall.c
index 16dfb1f..a497d91 100644
--- a/term-utils/wall.c
+++ b/term-utils/wall.c
@@ -329,7 +329,7 @@ static char *makemsg(char *fname, char **mvec, int mvecsz,
int i;
for (i = 0; i < mvecsz; i++) {
- fputs(mvec[i], fs);
+ fputs_careful(mvec[i], fs, '^', true, TERM_WIDTH);
if (i < mvecsz - 1)
fputc(' ', fs);
}
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