diff options
Diffstat (limited to 'meta/recipes-extended/procps/procps/CVE-2023-4016.patch')
-rw-r--r-- | meta/recipes-extended/procps/procps/CVE-2023-4016.patch | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/meta/recipes-extended/procps/procps/CVE-2023-4016.patch b/meta/recipes-extended/procps/procps/CVE-2023-4016.patch new file mode 100644 index 0000000000..50582a8649 --- /dev/null +++ b/meta/recipes-extended/procps/procps/CVE-2023-4016.patch @@ -0,0 +1,85 @@ +From 2c933ecba3bb1d3041a5a7a53a7b4078a6003413 Mon Sep 17 00:00:00 2001 +From: Craig Small <csmall@dropbear.xyz> +Date: Thu, 10 Aug 2023 21:18:38 +1000 +Subject: [PATCH] ps: Fix possible buffer overflow in -C option + +ps allocates memory using malloc(length of arg * len of struct). +In certain strange circumstances, the arg length could be very large +and the multiplecation will overflow, allocating a small amount of +memory. + +Subsequent strncpy() will then write into unallocated memory. +The fix is to use calloc. It's slower but this is a one-time +allocation. Other malloc(x * y) calls have also been replaced +by calloc(x, y) + +References: + https://www.freelists.org/post/procps/ps-buffer-overflow-CVE-20234016 + https://nvd.nist.gov/vuln/detail/CVE-2023-4016 + https://gitlab.com/procps-ng/procps/-/issues/297 + https://bugs.debian.org/1042887 + +Signed-off-by: Craig Small <csmall@dropbear.xyz> + +CVE: CVE-2023-4016 +Upstream-Status: Backport [https://gitlab.com/procps-ng/procps/-/commit/2c933ecba3bb1d3041a5a7a53a7b4078a6003413] + +Signed-off-by: Peter Marko <peter.marko@siemens.com> + +--- + NEWS | 1 + + ps/parser.c | 8 ++++---- + 2 files changed, 5 insertions(+), 4 deletions(-) + +diff --git a/NEWS b/NEWS +index b9509734..64fa3da8 100644 +--- a/NEWS ++++ b/NEWS +@@ -1,3 +1,5 @@ ++ * ps: Fix buffer overflow in -C option CVE-2023-4016 Debian #1042887, issue #297 ++ + procps-ng-3.3.16 + ---------------- + * library: Increment to 8:2:0 +diff --git a/ps/parser.c b/ps/parser.c +index 248aa741..15873dfa 100644 +--- a/ps/parser.c ++++ b/ps/parser.c +@@ -184,7 +184,6 @@ static const char *parse_list(const char *arg, const char *(*parse_fn)(char *, s + const char *err; /* error code that could or did happen */ + /*** prepare to operate ***/ + node = malloc(sizeof(selection_node)); +- node->u = malloc(strlen(arg)*sizeof(sel_union)); /* waste is insignificant */ + node->n = 0; + buf = strdup(arg); + /*** sanity check and count items ***/ +@@ -205,6 +204,7 @@ static const char *parse_list(const char *arg, const char *(*parse_fn)(char *, s + } while (*++walk); + if(need_item) goto parse_error; + node->n = items; ++ node->u = calloc(items, sizeof(sel_union)); + /*** actually parse the list ***/ + walk = buf; + while(items--){ +@@ -1031,15 +1031,15 @@ static const char *parse_trailing_pids(void){ + thisarg = ps_argc - 1; /* we must be at the end now */ + + pidnode = malloc(sizeof(selection_node)); +- pidnode->u = malloc(i*sizeof(sel_union)); /* waste is insignificant */ ++ pidnode->u = calloc(i, sizeof(sel_union)); /* waste is insignificant */ + pidnode->n = 0; + + grpnode = malloc(sizeof(selection_node)); +- grpnode->u = malloc(i*sizeof(sel_union)); /* waste is insignificant */ ++ grpnode->u = calloc(i,sizeof(sel_union)); /* waste is insignificant */ + grpnode->n = 0; + + sidnode = malloc(sizeof(selection_node)); +- sidnode->u = malloc(i*sizeof(sel_union)); /* waste is insignificant */ ++ sidnode->u = calloc(i, sizeof(sel_union)); /* waste is insignificant */ + sidnode->n = 0; + + while(i--){ +-- +GitLab + |