Package: release.debian.org Control: affects -1 + src:cjson X-Debbugs-Cc: [email protected] User: [email protected] Usertags: pu Tags: bookworm Severity: normal
[ Reason ]
CVE-2024-31755
[ Impact ]
Segmentation violation via the cJSON_SetValuestring function.
If the valuestring passed to cJSON_SetValuestring is NULL, a null
pointer dereference will happen, which can potentially cause denial of
service (DOS).
[ Tests ]
Upstream's tests continue to pass, no new tests were added since this is
a trivial change.
[ Risks ]
Minimal risk as the patch is trivial and only changes 1 line to fix this
security issue.
[ Checklist ]
[x] *all* changes are documented in the d/changelog
[x] I reviewed all changes and I approve them
[x] attach debdiff against the package in (old)stable
[x] the issue is verified as fixed in unstable
[ Changes ]
* Backport patch to add NULL check to cJSON_SetValuestring (CVE-2024-31755)
(Closes: #1071742)
[ Other info ]
Security team have marked it no-dsa.
--
Maytham Alsudany
Debian Maintainer
maytham @ OFTC
maytha8 @ Libera
diff -Nru cjson-1.7.15/debian/changelog cjson-1.7.15/debian/changelog --- cjson-1.7.15/debian/changelog 2024-04-09 09:30:29.000000000 +0800 +++ cjson-1.7.15/debian/changelog 2024-06-23 14:27:41.000000000 +0800 @@ -1,3 +1,11 @@ +cjson (1.7.15-1+deb12u2) bookworm; urgency=medium + + * Non-maintainer upload. + * Backport patch to add NULL check to cJSON_SetValuestring (CVE-2024-31755) + (Closes: #1071742) + + -- Maytham Alsudany <[email protected]> Sun, 23 Jun 2024 14:27:41 +0800 + cjson (1.7.15-1+deb12u1) bookworm; urgency=medium * Non-maintainer upload. diff -Nru cjson-1.7.15/debian/patches/0002-add-null-check-to-cjson-setvaluestring.patch cjson-1.7.15/debian/patches/0002-add-null-check-to-cjson-setvaluestring.patch --- cjson-1.7.15/debian/patches/0002-add-null-check-to-cjson-setvaluestring.patch 1970-01-01 08:00:00.000000000 +0800 +++ cjson-1.7.15/debian/patches/0002-add-null-check-to-cjson-setvaluestring.patch 2024-06-23 14:27:41.000000000 +0800 @@ -0,0 +1,23 @@ +Origin: backport, https://github.com/DaveGamble/cJSON/commit/7e4d5dabe7a9b754c601f214e65b544e67ba9f59 +From: Up-wind <[email protected]> +Bug: https://github.com/DaveGamble/cJSON/issues/839 +Bug-Debian: https://bugs.debian.org/1071742 +Acked-by: Maytham Alsudany <[email protected]> +Subject: [PATCH] Add NULL check to cJSON_SetValuestring() + If the valuestring passed to cJSON_SetValuestring is NULL, a null pointer + dereference will happen. This patch adds the NULL check of valuestring before + it is dereferenced. + . + Fix for CVE-2024-31755. + +--- a/cJSON.c ++++ b/cJSON.c +@@ -406,7 +406,7 @@ CJSON_PUBLIC(char*) cJSON_SetValuestring(cJSON *object, const char *valuestring) + return NULL; + } + /* return NULL if the object is corrupted */ +- if (object->valuestring == NULL) ++ if (object->valuestring == NULL || valuestring == NULL) + { + return NULL; + } diff -Nru cjson-1.7.15/debian/patches/series cjson-1.7.15/debian/patches/series --- cjson-1.7.15/debian/patches/series 2024-04-09 09:29:47.000000000 +0800 +++ cjson-1.7.15/debian/patches/series 2024-06-23 14:27:41.000000000 +0800 @@ -1 +1,2 @@ 0001-add-null-checkings.patch +0002-add-null-check-to-cjson-setvaluestring.patch
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