CVE-2025-2720
Description
A vulnerability was found in GNOME libgsf, affecting the gsf_base64_encode_simple function. The attack needs to be approached locally, and manipulation of the size argument can lead to use of an uninitialized variable.
Statement
This CVE has been marked as Rejected by the assigning CNA. According to the code maintainer the call of the POC is invalid because the buffer pointed to by "data" must have "len" valid bytes. The docs were updated to make that clear.
Understanding the Weakness (CWE)
Availability,Integrity,Other
Technical Impact: Other
Initial variables usually contain junk, which can not be trusted for consistency. This can lead to denial of service conditions, or modify control flow in unexpected ways. In some cases, an attacker can "pre-initialize" the variable using previous actions, which might enable code execution. This can cause a race condition if a lock variable check passes when it should not.
Authorization,Other
Technical Impact: Other
Strings that are not initialized are especially dangerous, since many functions expect a null at the end -- and only at the end -- of a string.
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