CVE-2018-20651

NameCVE-2018-20651
DescriptionA NULL pointer dereference was discovered in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31.1. This occurs for a crafted ET_DYN with no program headers. A specially crafted ELF file allows remote attackers to cause a denial of service, as demonstrated by ld.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
binutils (PTS)jessie2.25-5+deb8u1vulnerable
stretch2.28-5vulnerable
buster2.31.1-16vulnerable
bullseye2.35.2-2fixed
bookworm2.40-2fixed
sid, trixie2.42-4fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
binutilssource(unstable)2.32.51.20190707-1unimportant

Notes

https://sourceware.org/bugzilla/show_bug.cgi?id=24041
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f
binutils not covered by security support
[wheezy] - binutils <ignored> (Minor issue)

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