OpenSC before 0.27.0, fixed in commit 0358817, contains a stack and heap buffer overrun vulnerability in the do_key_value() function in…
A stack and heap buffer overrun vulnerability exists in OpenSC before 0.27.0, which can be exploited by supplying a crafted profile configuration file. The vulnerability occurs in the do_key_value() function when a key value entry starting with '=' is followed by more than sizeof(keybuf) characters. This allows attackers to corrupt memory via a crafted profile configuration file.
OpenSC before 0.27.0, fixed in commit 0358817, contains a stack and heap buffer overrun vulnerability in the do_key_value() function in src/pkcs15init/profile.c that allows attackers to corrupt memory by supplying a crafted profile configuration file. During pkcs15-init invocation, a key value entry beginning with '=' followed by more than sizeof(keybuf) characters is copied into keybuf via memcpy without a length check, causing both stack and heap buffer overruns.
Attackers with physical access are at risk of corrupting memory, posing a low severity threat to systems using vulnerable OpenSC versions.
Monitor & Review
Low severity — keep this CVE on your radar and patch during routine maintenance.
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Published
CVE disclosed publicly
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Added to this platform
AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
0
Affected Products
2
References
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Exploitability
Impact