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Resolves: RHEL-26649 - fix various CVEs

This commit is contained in:
Josef Řídký 2024-04-09 11:03:34 +02:00
parent fbd8c713cc
commit 2489d1deb4
2 changed files with 170 additions and 1 deletions
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163
net-snmp-5.9-CVE-2022-24805-24810.patch Normal file
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@ -0,0 +1,163 @@
From 9a0cd7c00947d5e1c6ceb54558d454f87c3b8341 Mon Sep 17 00:00:00 2001
From: Bill Fenner <fenner@gmail.com>
Date: Tue, 24 Aug 2021 07:55:00 -0700
Subject: [PATCH] CHANGES: snmpd: recover SET status from delegated request
Reported by: Yu Zhang of VARAS@IIE, Nanyu Zhong of VARAS@IIE
Fixes by: Arista Networks
When a SET request includes a mix of delegated and
non-delegated requests (e.g., objects handled by master
agent and agentx sub-agent), the status can get lost while
waiting for the reply from the sub-agent. Recover the status
into the session from the requests even if it has already
been processed.
---
agent/snmp_agent.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/agent/snmp_agent.c b/agent/snmp_agent.c
index 84fbb42b47..095ee70985 100644
--- a/agent/snmp_agent.c
+++ b/agent/snmp_agent.c
@@ -2965,7 +2965,7 @@ netsnmp_check_requests_status(netsnmp_agent_session *asp,
if (requests->status != SNMP_ERR_NOERROR &&
(!look_for_specific || requests->status == look_for_specific)
&& (look_for_specific || asp->index == 0
- || requests->index < asp->index)) {
+ || requests->index <= asp->index)) {
asp->index = requests->index;
asp->status = requests->status;
}
From 67ebb43e9038b2dae6e74ae8838b36fcc10fc937 Mon Sep 17 00:00:00 2001
From: Bill Fenner <fenner@gmail.com>
Date: Wed, 30 Jun 2021 14:00:28 -0700
Subject: [PATCH] CHANGES: snmpd: fix bounds checking in NET-SNMP-AGENT-MIB,
NET-SNMP-VACM-MIB, SNMP-VIEW-BASED-ACM-MIB, SNMP-USER-BASED-SM-MIB
Reported by: Yu Zhang of VARAS@IIE, Nanyu Zhong of VARAS@IIE
Fixes by: Arista Networks
---
agent/mibgroup/agent/nsLogging.c | 6 ++++++
agent/mibgroup/agent/nsVacmAccessTable.c | 16 ++++++++++++++--
agent/mibgroup/mibII/vacm_vars.c | 3 +++
agent/mibgroup/snmpv3/usmUser.c | 2 --
4 files changed, 23 insertions(+), 4 deletions(-)
diff --git a/agent/mibgroup/agent/nsLogging.c b/agent/mibgroup/agent/nsLogging.c
index 9abdeb5bb7..7f4290490a 100644
--- a/agent/mibgroup/agent/nsLogging.c
+++ b/agent/mibgroup/agent/nsLogging.c
@@ -147,6 +147,8 @@ handle_nsLoggingTable(netsnmp_mib_handler *handler,
continue;
logh = (netsnmp_log_handler*)netsnmp_extract_iterator_context(request);
table_info = netsnmp_extract_table_info(request);
+ if (!table_info || !table_info->indexes)
+ continue;
switch (table_info->colnum) {
case NSLOGGING_TYPE:
@@ -201,6 +203,8 @@ handle_nsLoggingTable(netsnmp_mib_handler *handler,
}
logh = (netsnmp_log_handler*)netsnmp_extract_iterator_context(request);
table_info = netsnmp_extract_table_info(request);
+ if (!table_info || !table_info->indexes)
+ continue;
switch (table_info->colnum) {
case NSLOGGING_TYPE:
@@ -394,6 +398,8 @@ handle_nsLoggingTable(netsnmp_mib_handler *handler,
continue;
logh = (netsnmp_log_handler*)netsnmp_extract_iterator_context(request);
table_info = netsnmp_extract_table_info(request);
+ if (!table_info || !table_info->indexes)
+ continue;
switch (table_info->colnum) {
case NSLOGGING_TYPE:
diff --git a/agent/mibgroup/agent/nsVacmAccessTable.c b/agent/mibgroup/agent/nsVacmAccessTable.c
index cc61fce7e6..6c43210074 100644
--- a/agent/mibgroup/agent/nsVacmAccessTable.c
+++ b/agent/mibgroup/agent/nsVacmAccessTable.c
@@ -170,9 +170,13 @@ nsVacmAccessTable_handler(netsnmp_mib_handler *handler,
entry = (struct vacm_accessEntry *)
netsnmp_extract_iterator_context(request);
table_info = netsnmp_extract_table_info(request);
+ if (!table_info || !table_info->indexes)
+ continue;
/* Extract the authType token from the list of indexes */
idx = table_info->indexes->next_variable->next_variable->next_variable->next_variable;
+ if (idx->val_len >= sizeof(atype))
+ continue;
memset(atype, 0, sizeof(atype));
memcpy(atype, (char *)idx->val.string, idx->val_len);
viewIdx = se_find_value_in_slist(VACM_VIEW_ENUM_NAME, atype);
@@ -212,6 +216,8 @@ nsVacmAccessTable_handler(netsnmp_mib_handler *handler,
entry = (struct vacm_accessEntry *)
netsnmp_extract_iterator_context(request);
table_info = netsnmp_extract_table_info(request);
+ if (!table_info || !table_info->indexes)
+ continue;
ret = SNMP_ERR_NOERROR;
switch (table_info->colnum) {
@@ -247,6 +253,8 @@ nsVacmAccessTable_handler(netsnmp_mib_handler *handler,
* Extract the authType token from the list of indexes
*/
idx = table_info->indexes->next_variable->next_variable->next_variable->next_variable;
+ if (idx->val_len >= sizeof(atype))
+ continue;
memset(atype, 0, sizeof(atype));
memcpy(atype, (char *)idx->val.string, idx->val_len);
viewIdx = se_find_value_in_slist(VACM_VIEW_ENUM_NAME, atype);
@@ -294,8 +302,10 @@ nsVacmAccessTable_handler(netsnmp_mib_handler *handler,
idx = idx->next_variable; model = *idx->val.integer;
idx = idx->next_variable; level = *idx->val.integer;
entry = vacm_createAccessEntry( gName, cPrefix, model, level );
- entry->storageType = ST_NONVOLATILE;
- netsnmp_insert_iterator_context(request, (void*)entry);
+ if (entry) {
+ entry->storageType = ST_NONVOLATILE;
+ netsnmp_insert_iterator_context(request, (void*)entry);
+ }
}
}
}
@@ -321,6 +331,8 @@ nsVacmAccessTable_handler(netsnmp_mib_handler *handler,
/* Extract the authType token from the list of indexes */
idx = table_info->indexes->next_variable->next_variable->next_variable->next_variable;
+ if (idx->val_len >= sizeof(atype))
+ continue;
memset(atype, 0, sizeof(atype));
memcpy(atype, (char *)idx->val.string, idx->val_len);
viewIdx = se_find_value_in_slist(VACM_VIEW_ENUM_NAME, atype);
diff --git a/agent/mibgroup/mibII/vacm_vars.c b/agent/mibgroup/mibII/vacm_vars.c
index 469a1eba59..62c9a3d051 100644
--- a/agent/mibgroup/mibII/vacm_vars.c
+++ b/agent/mibgroup/mibII/vacm_vars.c
@@ -997,6 +997,9 @@ access_parse_oid(oid * oidIndex, size_t oidLen,
return 1;
}
groupNameL = oidIndex[0];
+ if ((groupNameL + 1) > (int) oidLen) {
+ return 1;
+ }
contextPrefixL = oidIndex[groupNameL + 1]; /* the initial name length */
if ((int) oidLen != groupNameL + contextPrefixL + 4) {
return 1;
diff --git a/agent/mibgroup/snmpv3/usmUser.c b/agent/mibgroup/snmpv3/usmUser.c
index 0f52aaba49..0edea53cfb 100644
--- a/agent/mibgroup/snmpv3/usmUser.c
+++ b/agent/mibgroup/snmpv3/usmUser.c
@@ -1505,8 +1505,6 @@ write_usmUserStatus(int action,
if (usmStatusCheck(uptr)) {
uptr->userStatus = RS_ACTIVE;
} else {
- SNMP_FREE(engineID);
- SNMP_FREE(newName);
return SNMP_ERR_INCONSISTENTVALUE;
}
} else if (long_ret == RS_CREATEANDWAIT) {

8
net-snmp.spec
View File

@ -10,7 +10,7 @@
Summary: A collection of SNMP protocol tools and libraries
Name: net-snmp
Version: 5.9.1
Release: 13%{?dist}
Release: 14%{?dist}
Epoch: 1
License: BSD
@ -57,6 +57,7 @@ Patch27: net-snmp-5.9-ipv6-disable-leak.patch
Patch28: net-snmp-5.9-sendmsg-error-code.patch
Patch29: net-snmp-5.9-message-severity.patch
Patch30: net-snmp-5.9-rpmdb.patch
Patch31: net-snmp-5.9-CVE-2022-24805-24810.patch
# Modern RPM API means at least EL6
Patch101: net-snmp-5.8-modern-rpm-api.patch
@ -239,6 +240,7 @@ cp %{SOURCE10} .
%patch28 -p1 -b .sendmsg-error-code
%patch29 -p1 -b .message-severity
%patch30 -p1 -b .rpmdb
%patch31 -p1 -b .CVE-2022-24805-24810
%patch101 -p1 -b .modern-rpm-api
%patch102 -p1
@ -508,6 +510,10 @@ LD_LIBRARY_PATH=%{buildroot}/%{_libdir} make test
%{_libdir}/libnetsnmptrapd*.so.%{soname}*
%changelog
* Tue Apr 09 Josef Ridky <jridky@redhat.com> - 1:5.9.1-14
- fix CVE-2022-24805, CVE-2022-24806, CVE-2022-24807, CVE-2022-24808,
CVE-2022-24809 and CVE-2022-24810 (RHEL-26649)
* Thu Oct 19 2023 Josef Ridky <jridky@redhat.com> - 1:5.9.1-13
- add support for SQLite db background of rpm (RHEL-6854)