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Merge pull request puppetlabs#898 from amitkarsale/PA-6878
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(PA-6878) Patch agent-runtime-7.x and main Curl for CVE-2024-7264
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joshcooper authored Sep 3, 2024
2 parents 086f9aa + 446dc91 commit a1da62b
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1 change: 1 addition & 0 deletions configs/components/curl.rb
Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,7 @@
pkg.apply_patch 'resources/patches/curl/CVE-2023-46218.patch'
pkg.apply_patch 'resources/patches/curl/CVE-2024-2004.patch'
pkg.apply_patch 'resources/patches/curl/CVE-2024-2398.patch'
pkg.apply_patch 'resources/patches/curl/CVE-2024-7264.patch'
end

configure_options = []
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93 changes: 93 additions & 0 deletions resources/patches/curl/CVE-2024-7264.patch
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 */

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