Bug 2233943 (CVE-2020-21490)

Summary: CVE-2020-21490 binutils: memory leak in get_field() in microblaze-dis.c
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: acrosby, ailan, bdettelb, caswilli, desktop-qa-list, fjansen, fweimer, gdb-bugs, hkataria, jburrell, jmitchel, jsamir, jsherril, jtanner, kaycoth, keiths, kshier, mcermak, mpolacek, mprchlik, nickc, ohudlick, psegedy, rjones, sipoyare, sthirugn, tsasak, virt-maint, vkrizan
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
A memory leak vulnerability has been discovered in Binutils in microblaze-dis.c. This flaw results in memory consumption with each disassembled instruction. An attacker can exploit this vulnerability to conduct a denial of service attack by repeatedly triggering the disassembly of instructions, leading to memory exhaustion and service disruption.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2023-11-09 09:15:17 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2233944, 2233945, 2233946, 2234074, 2234075, 2234076, 2234077, 2234078, 2234079, 2234080, 2234081, 2234082, 2234083, 2234084, 2234085, 2234086, 2234087, 2234088    
Bug Blocks: 2233947    

Description Guilherme de Almeida Suckevicz 2023-08-23 19:15:12 UTC 
An issue was discovered in GNU Binutils 2.34. It is a memory leak when process microblaze-dis.c. This one will consume memory on each insn disassembled.

References:
https://sourceware.org/bugzilla/show_bug.cgi?id=25249
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=378fd436405b3051df34ac995b2e03fe1f3d1907
Comment 1 Guilherme de Almeida Suckevicz 2023-08-23 19:17:13 UTC 
Created binutils tracking bugs for this issue:

Affects: fedora-all [bug 2233944]


Created gdb tracking bugs for this issue:

Affects: fedora-all [bug 2233945]


Created mingw-binutils tracking bugs for this issue:

Affects: fedora-all [bug 2233946]