Vulnerability · Published Jan 4, 2021 · Assigned by redhat
CVE-2020-35493
Medium 5.5
In plain English
A medium-severity improper input validation in binutils. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.1%top 33.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 impact to application availability. This flaw affects binutils versions prior to 2.34.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | binutils | 2.33.50.20200107-1 | DEBIAN-CVE-2020-35493 |
| Debian:13 | binutils | 2.33.50.20200107-1 | DEBIAN-CVE-2020-35493 |
| Debian:14 | binutils | 2.33.50.20200107-1 | DEBIAN-CVE-2020-35493 |
Affected products (as reported)
Weakness: CWE-20
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1911437 x_refsource_MISC
- FEDORA-2020-28c78a6ac3 vendor-advisory, x_refsource_FEDORA
- https://security.netapp.com/advisory/ntap-20210212-0007/ x_refsource_CONFIRM
- GLSA-202107-24 vendor-advisory, x_refsource_GENTOO