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(PA-6878) Patch agent-runtime-7.x and main Curl for CVE-2024-7264
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,93 @@ | ||
diff --git a/lib/vtls/x509asn1.c b/lib/vtls/x509asn1.c | ||
index 39e4fb33b..7e2e3d724 100644 | ||
--- a/lib/vtls/x509asn1.c | ||
+++ b/lib/vtls/x509asn1.c | ||
@@ -566,28 +566,40 @@ static const char *GTime2str(const char *beg, const char *end) | ||
tzp = fracp; | ||
fracl = 0; | ||
if(fracp < end && (*fracp == '.' || *fracp == ',')) { | ||
- fracp++; | ||
- do | ||
+ /* Have fractional seconds, e.g. "[.,]\d+". How many? */ | ||
+ fracp++; /* should be a digit char or BAD ARGUMENT */ | ||
+ tzp = fracp; | ||
+ while(tzp < end && ISDIGIT(*tzp)) | ||
tzp++; | ||
- while(tzp < end && *tzp >= '0' && *tzp <= '9'); | ||
- /* Strip leading zeroes in fractional seconds. */ | ||
- for(fracl = tzp - fracp - 1; fracl && fracp[fracl - 1] == '0'; fracl--) | ||
- ; | ||
+ if(tzp == fracp) /* never looped, no digit after [.,] */ | ||
+ return CURLE_BAD_FUNCTION_ARGUMENT; | ||
+ fracl = tzp - fracp; /* number of fractional sec digits */ | ||
+ DEBUGASSERT(fracl > 0); | ||
+ /* Strip trailing zeroes in fractional seconds. | ||
+ * May reduce fracl to 0 if only '0's are present. */ | ||
+ while(fracl && fracp[fracl - 1] == '0') | ||
+ fracl--; | ||
} | ||
|
||
/* Process timezone. */ | ||
- if(tzp >= end) | ||
- ; /* Nothing to do. */ | ||
+ if(tzp >= end) { | ||
+ sep = " "; | ||
+ tzp = "GMT"; | ||
+ tzl = 3; | ||
+ } | ||
+ else if((*tzp == '+') || (*tzp == '-')) { | ||
+ sep = " UTC"; | ||
+ tzl = end - tzp; | ||
+ } /* Nothing to do. */ | ||
else if(*tzp == 'Z') { | ||
tzp = " GMT"; | ||
end = tzp + 4; | ||
} | ||
else { | ||
sep = " "; | ||
- tzp++; | ||
+ tzl = end - tzp; | ||
} | ||
|
||
- tzl = end - tzp; | ||
return curl_maprintf("%.4s-%.2s-%.2s %.2s:%.2s:%c%c%s%.*s%s%.*s", | ||
beg, beg + 4, beg + 6, | ||
beg + 8, beg + 10, sec1, sec2, | ||
@@ -595,6 +607,15 @@ static const char *GTime2str(const char *beg, const char *end) | ||
sep, (int)tzl, tzp); | ||
} | ||
|
||
+#ifdef UNITTESTS | ||
+/* used by unit1656.c */ | ||
+CURLcode Curl_x509_GTime2str(struct dynbuf *store, | ||
+ const char *beg, const char *end) | ||
+{ | ||
+ return GTime2str(store, beg, end); | ||
+} | ||
+#endif | ||
+ | ||
/* | ||
* Convert an ASN.1 UTC time to a printable string. | ||
* Return the dynamically allocated string, or NULL if an error occurs. | ||
diff --git a/lib/vtls/x509asn1.h b/lib/vtls/x509asn1.h | ||
index 5496de40e..93925718c 100644 | ||
--- a/lib/vtls/x509asn1.h | ||
+++ b/lib/vtls/x509asn1.h | ||
@@ -76,6 +76,17 @@ CURLcode Curl_extract_certinfo(struct Curl_easy *data, int certnum, | ||
const char *beg, const char *end); | ||
CURLcode Curl_verifyhost(struct Curl_cfilter *cf, struct Curl_easy *data, | ||
const char *beg, const char *end); | ||
+ | ||
+#ifdef UNITTESTS | ||
+#if defined(USE_GNUTLS) || defined(USE_SCHANNEL) || defined(USE_SECTRANSP) || \ | ||
+ defined(USE_MBEDTLS) | ||
+ | ||
+/* used by unit1656.c */ | ||
+CURLcode Curl_x509_GTime2str(struct dynbuf *store, | ||
+ const char *beg, const char *end); | ||
+#endif | ||
+#endif | ||
+ | ||
#endif /* USE_GSKIT or USE_NSS or USE_GNUTLS or USE_WOLFSSL or USE_SCHANNEL | ||
* or USE_SECTRANSP */ | ||
#endif /* HEADER_CURL_X509ASN1_H */ |