Bug 1906772 (CVE-2020-16593) - CVE-2020-16593 binutils: Null Pointer Dereference in scan_unit_for_symbols could result in DoS
Summary: CVE-2020-16593 binutils: Null Pointer Dereference in scan_unit_for_symbols co...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2020-16593
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: 1906775 1906776
Blocks: 1906786
TreeView+ depends on / blocked
 
Reported: 2020-12-11 11:53 UTC by Michael Kaplan
Modified: 2021-02-16 18:44 UTC (History)
23 users (show)

Fixed In Version: binutils 2.35
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Clone Of:
Environment:
Last Closed: 2020-12-23 00:27:47 UTC


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Description Michael Kaplan 2020-12-11 11:53:47 UTC
A Null Pointer Dereference vulnerability exists in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.34, in scan_unit_for_symbols, as demonstrated in addr2line, that can cause a denial of service via a crafted file.

External References:

https://sourceware.org/bugzilla/show_bug.cgi?id=25827
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=aec72fda3b320c36eb99fc1c4cf95b10fc026729

Comment 1 Michael Kaplan 2020-12-11 11:54:29 UTC
Created binutils tracking bugs for this issue:

Affects: fedora-32 [bug 1906776]


Created mingw-binutils tracking bugs for this issue:

Affects: fedora-all [bug 1906775]

Comment 5 Todd Cullum 2020-12-22 20:11:55 UTC
Statement:

binutils as shipped in Red Hat Developer Toolsets 9 and 10, Red Hat Enterprise Linux 8 BaseOS and GCC Toolsets 9 and 10, are all not affected by this flaw as it was introduced in a newer version of binutils code than shipped for BaseOS and the 9 toolsets, and already patched in the versions shipped with 10 toolsets.

Comment 6 Product Security DevOps Team 2020-12-23 00:27:47 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-16593


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