libykcs11-2-2.2.0-1.5 on GA media SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2024:11537 Final 1 1 2024-06-17T21:45:33Z current 2024-06-17T21:45:33Z 2024-06-17T21:45:33Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z libykcs11-2-2.2.0-1.5 on GA media These are all security issues fixed in the libykcs11-2-2.2.0-1.5 package on the GA media of openSUSE Tumbleweed. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-Tumbleweed-2024-11537 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) E-Mail link for openSUSE-SU-2024:11537 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://www.suse.com/security/cve/CVE-2018-14779/ SUSE CVE CVE-2018-14779 page https://www.suse.com/security/cve/CVE-2018-14780/ SUSE CVE CVE-2018-14780 page openSUSE Tumbleweed libykcs11-2-2.2.0-1.5 libykcs11-devel-2.2.0-1.5 libykpiv-devel-2.2.0-1.5 libykpiv2-2.2.0-1.5 yubico-piv-tool-2.2.0-1.5 libykcs11-2-2.2.0-1.5 as a component of openSUSE Tumbleweed libykcs11-devel-2.2.0-1.5 as a component of openSUSE Tumbleweed libykpiv-devel-2.2.0-1.5 as a component of openSUSE Tumbleweed libykpiv2-2.2.0-1.5 as a component of openSUSE Tumbleweed yubico-piv-tool-2.2.0-1.5 as a component of openSUSE Tumbleweed A buffer overflow issue was discovered in the Yubico-Piv 1.5.0 smartcard driver. The file lib/ykpiv.c contains the following code in the function `ykpiv_transfer_data()`: {% highlight c %} if(*out_len + recv_len - 2 > max_out) { fprintf(stderr, "Output buffer to small, wanted to write %lu, max was %lu.", *out_len + recv_len - 2, max_out); } if(out_data) { memcpy(out_data, data, recv_len - 2); out_data += recv_len - 2; *out_len += recv_len - 2; } {% endhighlight %} -- it is clearly checked whether the buffer is big enough to hold the data copied using `memcpy()`, but no error handling happens to avoid the `memcpy()` in such cases. This code path can be triggered with malicious data coming from a smartcard. CVE-2018-14779 openSUSE Tumbleweed:libykcs11-2-2.2.0-1.5 openSUSE Tumbleweed:libykcs11-devel-2.2.0-1.5 openSUSE Tumbleweed:libykpiv-devel-2.2.0-1.5 openSUSE Tumbleweed:libykpiv2-2.2.0-1.5 openSUSE Tumbleweed:yubico-piv-tool-2.2.0-1.5 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2018-14779.html CVE-2018-14779 https://bugzilla.suse.com/1104809 SUSE Bug 1104809 An out-of-bounds read issue was discovered in the Yubico-Piv 1.5.0 smartcard driver. The file lib/ykpiv.c contains the following code in the function `_ykpiv_fetch_object()`: {% highlight c %} if(sw == SW_SUCCESS) { size_t outlen; int offs = _ykpiv_get_length(data + 1, &outlen); if(offs == 0) { return YKPIV_SIZE_ERROR; } memmove(data, data + 1 + offs, outlen); *len = outlen; return YKPIV_OK; } else { return YKPIV_GENERIC_ERROR; } {% endhighlight %} -- in the end, a `memmove()` occurs with a length retrieved from APDU data. This length is not checked for whether it is outside of the APDU data retrieved. Therefore the `memmove()` could copy bytes behind the allocated data buffer into this buffer. CVE-2018-14780 openSUSE Tumbleweed:libykcs11-2-2.2.0-1.5 openSUSE Tumbleweed:libykcs11-devel-2.2.0-1.5 openSUSE Tumbleweed:libykpiv-devel-2.2.0-1.5 openSUSE Tumbleweed:libykpiv2-2.2.0-1.5 openSUSE Tumbleweed:yubico-piv-tool-2.2.0-1.5 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2018-14780.html CVE-2018-14780 https://bugzilla.suse.com/1104809 SUSE Bug 1104809 https://bugzilla.suse.com/1104811 SUSE Bug 1104811