Bug 2234910 (CVE-2020-18780) - CVE-2020-18780 nasm: use-after-free in new_Token() in asm/preproc.c
Summary: CVE-2020-18780 nasm: use-after-free in new_Token() in asm/preproc.c
Keywords:
Status: NEW
Alias: CVE-2020-18780
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: 2234956 2234965 2234966
Blocks: 2234904
TreeView+ depends on / blocked
 
Reported: 2023-08-25 18:12 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-09-27 15:09 UTC (History)
2 users (show)

Fixed In Version: nasm 2.14.04rc6, nasm 2.15.05
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description Guilherme de Almeida Suckevicz 2023-08-25 18:12:03 UTC 
A Use After Free vulnerability in function new_Token in asm/preproc.c in nasm 2.14.02 allows attackers to cause a denial of service via crafted nasm command.

Reference:
https://bugzilla.nasm.us/show_bug.cgi?id=3392634
Comment 1 Guilherme de Almeida Suckevicz 2023-08-25 19:07:27 UTC 
Created nasm tracking bugs for this issue:

Affects: fedora-all [bug 2234956]
Comment 3 Pedro Sampaio 2023-09-27 15:08:28 UTC 
Upstream commit:

https://github.com/netwide-assembler/nasm/commit/7c88289e222dc5ef9f53f9e86ecaab1924744b88
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