UpHeron
All vulnerabilities

Servers and applications

CVE-2013-2020

Integer underflow in the cli_scanpe function in pe.c in ClamAV before 0.97.8 allows remote attackers to cause a denial of service (crash) via a skewed offset larger than the size of the PE section in a UPX packed executable, which triggers an out-of-bounds read.

Severity
Medium 5.0
Published
13 May 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
3.5% in the next 30 daysHigher than 89% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-189
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
ClamAVServers and applications · cpe:a:clamav:clamav
  • Version 0.97.5
  • Version 0.97.4
  • Version 0.97.3
  • Version 0.97.2
All 53 release lines
  • Every version up to 0.97.7
  • Version 0.9-rc1
  • Version 0.90-rc1
  • Version 0.90-rc1.1
  • Version 0.90-rc2
  • Version 0.90-rc3
  • Version 0.90
  • Version 0.90.1
  • Version 0.90.1_p0
  • Version 0.90.2
  • Version 0.90.2_p0
  • Version 0.90.3
  • Version 0.90.3_p0
  • Version 0.90.3_p1
  • Version 0.91-rc1
  • Version 0.91-rc2
  • Version 0.91
  • Version 0.91.1
  • Version 0.91.2
  • Version 0.91.2_p0
  • Version 0.92
  • Version 0.92_p0
  • Version 0.92.1
  • Version 0.93
  • Version 0.93.1
  • Version 0.93.2
  • Version 0.93.3
  • Version 0.94
  • Version 0.94.1
  • Version 0.94.2
  • Version 0.95-rc1
  • Version 0.95-rc2
  • Version 0.95
  • Version 0.95-src1
  • Version 0.95-src2
  • Version 0.95.1
  • Version 0.95.2
  • Version 0.95.3
  • Version 0.96-rc1
  • Version 0.96-rc2
  • Version 0.96
  • Version 0.96.1
  • Version 0.96.2
  • Version 0.96.3
  • Version 0.96.4
  • Version 0.96.5
  • Version 0.97-rc
  • Version 0.97
  • Version 0.97.1
  • Version 0.97.2
  • Version 0.97.3
  • Version 0.97.4
  • Version 0.97.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-2020
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-2020