CVE-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 -> out-of-bounds read that could lead to an
02 Description
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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 1.13% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 66.2% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-08.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-01-04 14:22Z5 YR AGO
- Last updated
- 2026-10-08 21:13Z20 DAYS AGO
- Reserved
- 2020-12-17
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.2
- Document digest
- 8c65a0774ff06df5019e6e3129ef0a03d8eaf62f6b7f8ab4b58c5e64b5839940
05 Affected products
06 References
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1911437
- lists.fedoraproject.orgFEDORA-2020-28c78a6ac3https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KOK3QWSVOUJWJ54HVGIFWNLWQ5ZY4S6/
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20210212-0007/
- security.gentoo.orgGLSA-202107-24https://security.gentoo.org/glsa/202107-24
07 Fixed in
Debian 12
- binutils Fixed in 2.33.50.20200107-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- binutils Fixed in 2.33.50.20200107-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- binutils Fixed in 2.33.50.20200107-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.