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- Fix the novel ghost domain issues CVE-2022-30698 and CVE-2022-30699.

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W.C.A. Wijngaards
2022-08-01 13:24:40 +02:00
parent efdd70c7b5
commit f6753a0f10
17 changed files with 160 additions and 48 deletions
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pythonmod/interface.i
+3 -2
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@@ -1375,7 +1375,8 @@ int set_return_msg(struct module_qstate* qstate,
/* Functions which we will need to lookup delegations */
struct delegpt* dns_cache_find_delegation(struct module_env* env,
uint8_t* qname, size_t qnamelen, uint16_t qtype, uint16_t qclass,
struct regional* region, struct dns_msg** msg, uint32_t timenow);
struct regional* region, struct dns_msg** msg, uint32_t timenow,
int noexpiredabove, uint8_t* expiretop, size_t expiretoplen);
int iter_dp_is_useless(struct query_info* qinfo, uint16_t qflags,
struct delegpt* dp, int supports_ipv4, int supports_ipv6);
struct iter_hints_stub* hints_lookup_stub(struct iter_hints* hints,
@@ -1404,7 +1405,7 @@ struct delegpt* find_delegation(struct module_qstate* qstate, char *nm, size_t n
qinfo.qclass = LDNS_RR_CLASS_IN;
while(1) {
dp = dns_cache_find_delegation(qstate->env, (uint8_t*)nm, nmlen, qinfo.qtype, qinfo.qclass, region, &msg, timenow);
dp = dns_cache_find_delegation(qstate->env, (uint8_t*)nm, nmlen, qinfo.qtype, qinfo.qclass, region, &msg, timenow, 0, NULL, 0);
if(!dp)
return NULL;
if(iter_dp_is_useless(&qinfo, BIT_RD, dp,