CVE-2020-35493
published 2021-01-04CVE-2020-35493: A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow ->…
PriorityP420medium5.5CVSS 3.1
AVLACLPRNUIRSUCNINAH
EPSS
1.13%
63.0th percentile
A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | binutils | < binutils 2.33.50.20200107-1 (bookworm) | binutils 2.33.50.20200107-1 (bookworm) |
| fedoraproject | fedora | — | — |
| gnu | binutils | < 2.34 | 2.34 |
| gnu | binutils | — | — |
| gnu | binutils | >= 0 < 2.33.50.20200107-1 | 2.33.50.20200107-1 |
| gnu | binutils | >= 0 < 2.33.50.20200107-1 | 2.33.50.20200107-1 |
| gnu | binutils | >= 0 < 2.33.50.20200107-1 | 2.33.50.20200107-1 |
| gnu | binutils | >= 0 < 2.33.50.20200107-1 | 2.33.50.20200107-1 |
| msrc | cm1_binutils_2.32-5_on_cbl_mariner_1.0 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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GHSA
GHSA-w5g7-j55x-m535: A flaw exists in binutils in bfd/pef
ghsa_unreviewed·2022-05-24
CVE-2020-35493 [MEDIUM] CWE-125 GHSA-w5g7-j55x-m535: A flaw exists in binutils in bfd/pef
A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.
OSV
CVE-2020-35493: A flaw exists in binutils in bfd/pef
osv·2021-01-04·CVSS 5.5
CVE-2020-35493 [MEDIUM] CVE-2020-35493: A flaw exists in binutils in bfd/pef
A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.
Microsoft
A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impa
vendor_msrc·2021-01-12·CVSS 5.5
CVE-2020-35493 [MEDIUM] CWE-20 A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impa
A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for mo
Debian
CVE-2020-35493: binutils - A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a craf...
vendor_debian·2020·CVSS 5.5
CVE-2020-35493 [MEDIUM] CVE-2020-35493: binutils - A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a craf...
A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.
Scope: local
bookworm: resolved (fixed in 2.33.50.20200107-1)
bullseye: resolved (fixed in 2.33.50.20200107-1)
forky: resolved (fixed in 2.33.50.20200107-1)
sid: resolved (fixed in 2.33.50.20200107-1)
trixie: resolved (fixed in 2.33.50.20200107-1)
Red Hat
binutils: heap-based buffer overflow in bfd_pef_parse_function_stubs function in bfd/pef.c via crafted PEF file
vendor_redhat·2019-12-21·CVSS 5.5
CVE-2020-35493 [MEDIUM] CWE-125 binutils: heap-based buffer overflow in bfd_pef_parse_function_stubs function in bfd/pef.c via crafted PEF file
binutils: heap-based buffer overflow in bfd_pef_parse_function_stubs function in bfd/pef.c via crafted PEF file
A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.
A flaw was found in Binutils in bfd/pef.c. This flaw allows an attacker who can submit a crafted PEF file to be parsed by objdump to cause a heap buffer overflow, leading to an out-of-bounds read. The highest threat from this vulnerability is to system availability.
Statement: Binutils as shipped with Red Hat Enterprise Linux 8's GCC Toolset 10 and Red Hat Developer Toolset 10 are not affected by th
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.redhat.com/show_bug.cgi?id=1911437https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KOK3QWSVOUJWJ54HVGIFWNLWQ5ZY4S6/https://security.gentoo.org/glsa/202107-24https://security.netapp.com/advisory/ntap-20210212-0007/https://bugzilla.redhat.com/show_bug.cgi?id=1911437https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KOK3QWSVOUJWJ54HVGIFWNLWQ5ZY4S6/https://security.gentoo.org/glsa/202107-24https://security.netapp.com/advisory/ntap-20210212-0007/
2021-01-04
Published