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* gnu/pacakges/patches/libconfuse-CVE-2022-40320.patch: Add file. * gnu/packages/textutils.scm (libconfuse)[source]: Record patch. * gnu/local.mk: Record patch. Signed-off-by: Zheng Junjie <z572@z572.online>
38 lines
966 B
Diff
38 lines
966 B
Diff
[PATCH] Fix #163: unterminated username used with getpwnam()
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Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
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---
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src/confuse.c | 10 ++++++----
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1 file changed, 6 insertions(+), 4 deletions(-)
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diff --git a/src/confuse.c b/src/confuse.c
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index ce4fca8..060fae2 100644
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--- a/src/confuse.c
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+++ b/src/confuse.c
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@@ -1863,18 +1863,20 @@ DLLIMPORT char *cfg_tilde_expand(const char *filename)
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passwd = getpwuid(geteuid());
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file = filename + 1;
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} else {
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- /* ~user or ~user/path */
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- char *user;
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+ char *user; /* ~user or ~user/path */
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+ size_t len;
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file = strchr(filename, '/');
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if (file == 0)
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file = filename + strlen(filename);
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- user = malloc(file - filename);
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+ len = file - filename - 1;
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+ user = malloc(len + 1);
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if (!user)
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return NULL;
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- strncpy(user, filename + 1, file - filename - 1);
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+ strncpy(user, &filename[1], len);
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+ user[len] = 0;
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passwd = getpwnam(user);
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free(user);
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}
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--
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2.48.1
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