Bug 2233943 (CVE-2020-21490) - CVE-2020-21490 binutils: memory leak in get_field() in microblaze-dis.c
Summary: CVE-2020-21490 binutils: memory leak in get_field() in microblaze-dis.c
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2020-21490
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2233944 2233945 2233946 2234074 2234075 2234076 2234077 2234078 2234079 2234080 2234081 2234082 2234083 2234084 2234085 2234086 2234087 2234088
Blocks: 2233947
TreeView+ depends on / blocked
 
Reported: 2023-08-23 19:15 UTC by Guilherme de Almeida Suckevicz
Modified: 2024-02-16 08:52 UTC (History)
29 users (show)

Fixed In Version:
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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.
Clone Of:
Environment:
Last Closed: 2023-11-09 09:15:17 UTC
Embargoed:

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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]
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