Bug 1647421 (CVE-2018-18607) - CVE-2018-18607 binutils: NULL pointer dereference in elf_link_input_bfd in elflink.c
Summary: CVE-2018-18607 binutils: NULL pointer dereference in elf_link_input_bfd in el...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-18607
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1647422 1647423 1647424 1647425 1654476 1654477 1654478
Blocks: 1647427
TreeView+ depends on / blocked
 
Reported: 2018-11-07 12:46 UTC by Laura Pardo
Modified: 2021-10-25 22:22 UTC (History)
19 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-10-25 22:22:01 UTC
Embargoed:

Attachments (Terms of Use)

Description Laura Pardo 2018-11-07 12:46:34 UTC 
An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in elf_link_input_bfd in elflink.c when used for finding STT_TLS symbols without any TLS section. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld. 


References:
https://sourceware.org/bugzilla/show_bug.cgi?id=23805 

Upstream Patch:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=102def4da826b3d9e169741421e5e67e8731909a
Comment 1 Laura Pardo 2018-11-07 12:47:40 UTC 
Created binutils tracking bugs for this issue:

Affects: fedora-all [bug 1647423]


Created mingw-binutils tracking bugs for this issue:

Affects: epel-all [bug 1647422]
Note You need to log in before you can comment on or make changes to this bug.