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<a id="user-content-description-of-problem" class="anchor" href="#description-of-problem" aria-hidden="true"></a>Description of problem:</h2>
<p dir="auto">Failed to export key if the algorithm is ECDSAP384SHA384.</p>
<h2 dir="auto">
<a id="user-content-version-of-gnutls-used" class="anchor" href="#version-of-gnutls-used" aria-hidden="true"></a>Version of gnutls used:</h2>
<p dir="auto">GnuTLS 3.6.2</p>
<p dir="auto">Previous versions (3.5.18) are not affected.</p>
<h2 dir="auto">
<a id="user-content-distributor-of-gnutls-eg-ubuntu-fedora-rhel" class="anchor" href="#distributor-of-gnutls-eg-ubuntu-fedora-rhel" aria-hidden="true"></a>Distributor of gnutls (e.g., Ubuntu, Fedora, RHEL)</h2>
<p dir="auto">Fedora</p>
<h2 dir="auto">
<a id="user-content-how-reproducible" class="anchor" href="#how-reproducible" aria-hidden="true"></a>How reproducible:</h2>
<p dir="auto">Will be provided if necessary.</p>
<h2 dir="auto">
<a id="user-content-actual-results" class="anchor" href="#actual-results" aria-hidden="true"></a>Actual results:</h2>
<pre class="code highlight js-syntax-highlight plaintext" lang="plaintext" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">==25535==ERROR: AddressSanitizer: stack-overflow on address 0x7ffc8d3bfff8 (pc 0x000000447164 bp 0x7ffc8d3c08c0 sp 0x7ffc8d3c0000 T0)</span>
<span id="LC2" class="line" lang="plaintext"> #0 0x447163 in printf_common(void*, char const*, __va_list_tag*) (/usr/local/sbin/keymgr+0x447163)</span>
<span id="LC3" class="line" lang="plaintext"> #1 0x448c55 in vsnprintf (/usr/local/sbin/keymgr+0x448c55)</span>
<span id="LC4" class="line" lang="plaintext"> #2 0x448ff9 in __interceptor___snprintf_chk (/usr/local/sbin/keymgr+0x448ff9)</span>
<span id="LC5" class="line" lang="plaintext"> #3 0x7f39179f37d9 in asn1_create_element (/lib64/libtasn1.so.6+0xc7d9)</span>
<span id="LC6" class="line" lang="plaintext"> #4 0x7f3919b7bde8 in encode_to_private_key_info /usr/src/debug/gnutls-3.6.2-3.fc28.x86_64/lib/x509/privkey_pkcs8.c:162:7</span>
<span id="LC7" class="line" lang="plaintext"> #5 0x7f3919b7cf49 in gnutls_x509_privkey_export2_pkcs8 /usr/src/debug/gnutls-3.6.2-3.fc28.x86_64/lib/x509/privkey_pkcs8.c:630:8</span>
<span id="LC8" class="line" lang="plaintext"> #6 0x7f3919b7c1a6 in _encode_privkey /usr/src/debug/gnutls-3.6.2-3.fc28.x86_64/lib/x509/privkey_pkcs8.c:85:7</span>
<span id="LC9" class="line" lang="plaintext"> #7 0x7f3919b7c1a6 in encode_to_private_key_info /usr/src/debug/gnutls-3.6.2-3.fc28.x86_64/lib/x509/privkey_pkcs8.c:205:11</span>
<span id="LC10" class="line" lang="plaintext"> #8 0x7f3919b7cf49 in gnutls_x509_privkey_export2_pkcs8 /usr/src/debug/gnutls-3.6.2-3.fc28.x86_64/lib/x509/privkey_pkcs8.c:630:8</span>
<span id="LC11" class="line" lang="plaintext">...</span></code></pre>
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