GNU Binutils thru 2.46 readelf contains a double free vulnerability when processing a crafted ELF binary with malformed relocation data. During GOT relocation handling, dump_relocations may return early without initializing the all_relocations array. As a result, process_got_section_contents() may pass an uninitialized r_symbol pointer to free(), leading to a double free and terminating the program with SIGABRT.
No evidence of exploitable memory corruption or code execution was observed; the impact is limited to denial of service. NOTE: this is disputed by third parties because the observed behavior occurred only in pre-release code and did not affect any tagged version.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Gnu Binutils
cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*
|
— |
<= 2.46
|
References 5
https://sourceware.org/bugzilla/show_bug.cgi?id=33698
cve@mitre.org
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ea4bc025abdba85a90e2…
cve@mitre.org
https://sourceware.org/bugzilla/show_bug.cgi?id=33700
cve@mitre.org
https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=81e90cf63a10ad117…
cve@mitre.org
https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=ea4bc025abdba85a9…
cve@mitre.org