diff options
Diffstat (limited to 'external/meta-openembedded/meta-oe/recipes-kernel/ipmitool/ipmitool/0004-lanp-Fix-buffer-overflows-in-get_lan_param_select.patch')
| -rw-r--r-- | external/meta-openembedded/meta-oe/recipes-kernel/ipmitool/ipmitool/0004-lanp-Fix-buffer-overflows-in-get_lan_param_select.patch | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/external/meta-openembedded/meta-oe/recipes-kernel/ipmitool/ipmitool/0004-lanp-Fix-buffer-overflows-in-get_lan_param_select.patch b/external/meta-openembedded/meta-oe/recipes-kernel/ipmitool/ipmitool/0004-lanp-Fix-buffer-overflows-in-get_lan_param_select.patch new file mode 100644 index 00000000..b5ce9e92 --- /dev/null +++ b/external/meta-openembedded/meta-oe/recipes-kernel/ipmitool/ipmitool/0004-lanp-Fix-buffer-overflows-in-get_lan_param_select.patch @@ -0,0 +1,94 @@ +From e6aa6076f65e71544bd6450d20d943d7baaccb9f Mon Sep 17 00:00:00 2001 +From: Chrostoper Ertl <chertl@microsoft.com> +Date: Thu, 28 Nov 2019 17:06:39 +0000 +Subject: [PATCH 4/5] lanp: Fix buffer overflows in get_lan_param_select +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Partial fix for CVE-2020-5208, see +https://github.com/ipmitool/ipmitool/security/advisories/GHSA-g659-9qxw-p7cp + +The `get_lan_param_select` function is missing a validation check on the +response’s `data_len`, which it then returns to caller functions, where +stack buffer overflow can occur. + +Upstream-Status: Backport[https://github.com/ipmitool/ipmitool/commit/d45572d71e70840e0d4c50bf48218492b79c1a10] +CVE: CVE-2020-5208 + +[Make some changes to apply it] +Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com> +--- + lib/ipmi_lanp.c | 14 +++++++------- + 1 file changed, 7 insertions(+), 7 deletions(-) + +diff --git a/lib/ipmi_lanp.c b/lib/ipmi_lanp.c +index 060e753..dee21ee 100644 +--- a/lib/ipmi_lanp.c ++++ b/lib/ipmi_lanp.c +@@ -1917,7 +1917,7 @@ ipmi_lan_alert_set(struct ipmi_intf * intf, uint8_t chan, uint8_t alert, + if (p == NULL) { + return (-1); + } +- memcpy(data, p->data, p->data_len); ++ memcpy(data, p->data, __min(p->data_len, sizeof(data))); + /* set new ipaddr */ + memcpy(data+3, temp, 4); + printf("Setting LAN Alert %d IP Address to %d.%d.%d.%d\n", alert, +@@ -1932,7 +1932,7 @@ ipmi_lan_alert_set(struct ipmi_intf * intf, uint8_t chan, uint8_t alert, + if (p == NULL) { + return (-1); + } +- memcpy(data, p->data, p->data_len); ++ memcpy(data, p->data, __min(p->data_len, sizeof(data))); + /* set new macaddr */ + memcpy(data+7, temp, 6); + printf("Setting LAN Alert %d MAC Address to " +@@ -1947,7 +1947,7 @@ ipmi_lan_alert_set(struct ipmi_intf * intf, uint8_t chan, uint8_t alert, + if (p == NULL) { + return (-1); + } +- memcpy(data, p->data, p->data_len); ++ memcpy(data, p->data, __min(p->data_len, sizeof(data))); + + if (strncasecmp(argv[1], "def", 3) == 0 || + strncasecmp(argv[1], "default", 7) == 0) { +@@ -1973,7 +1973,7 @@ ipmi_lan_alert_set(struct ipmi_intf * intf, uint8_t chan, uint8_t alert, + if (p == NULL) { + return (-1); + } +- memcpy(data, p->data, p->data_len); ++ memcpy(data, p->data, __min(p->data_len, sizeof(data))); + + if (strncasecmp(argv[1], "on", 2) == 0 || + strncasecmp(argv[1], "yes", 3) == 0) { +@@ -1998,7 +1998,7 @@ ipmi_lan_alert_set(struct ipmi_intf * intf, uint8_t chan, uint8_t alert, + if (p == NULL) { + return (-1); + } +- memcpy(data, p->data, p->data_len); ++ memcpy(data, p->data, __min(p->data_len, sizeof(data))); + + if (strncasecmp(argv[1], "pet", 3) == 0) { + printf("Setting LAN Alert %d destination to PET Trap\n", alert); +@@ -2026,7 +2026,7 @@ ipmi_lan_alert_set(struct ipmi_intf * intf, uint8_t chan, uint8_t alert, + if (p == NULL) { + return (-1); + } +- memcpy(data, p->data, p->data_len); ++ memcpy(data, p->data, __min(p->data_len, sizeof(data))); + + if (str2uchar(argv[1], &data[2]) != 0) { + lprintf(LOG_ERR, "Invalid time: %s", argv[1]); +@@ -2042,7 +2042,7 @@ ipmi_lan_alert_set(struct ipmi_intf * intf, uint8_t chan, uint8_t alert, + if (p == NULL) { + return (-1); + } +- memcpy(data, p->data, p->data_len); ++ memcpy(data, p->data, __min(p->data_len, sizeof(data))); + + if (str2uchar(argv[1], &data[3]) != 0) { + lprintf(LOG_ERR, "Invalid retry: %s", argv[1]); +-- +1.9.1 + |