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CVE-2026-0965 config: Do not attempt to read non-regular and too large configuration files

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Changes also the reading of known_hosts to use the new helper function

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Jakub Jelen
2025-12-11 17:33:19 +01:00
parent 1b2a4f760b
commit a5eb30dbfd
10 changed files with 118 additions and 13 deletions
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4
src/bind_config.c
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@@ -217,7 +217,7 @@ local_parse_file(ssh_bind bind,
return;
}
f = fopen(filename, "r");
f = ssh_strict_fopen(filename, SSH_MAX_CONFIG_FILE_SIZE);
if (f == NULL) {
SSH_LOG(SSH_LOG_RARE, "Cannot find file %s to load",
filename);
@@ -655,7 +655,7 @@ int ssh_bind_config_parse_file(ssh_bind bind, const char *filename)
* option to be redefined later by another file. */
uint8_t seen[BIND_CFG_MAX] = {0};
f = fopen(filename, "r");
f = ssh_strict_fopen(filename, SSH_MAX_CONFIG_FILE_SIZE);
if (f == NULL) {
return 0;
}