CVE-2020-35738: debian debian_linux Integer Overflow or Wraparound
CVSS: 6.1v3.1MediumModified
AliasesMGASA-2021-0271SUSE-SU-2021:0929-1SUSE-SU-2021:14669-1UBUNTU-CVE-2020-35738USN-4682-1DEBIAN-CVE-2020-35738
Published 28-12-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-35738 is a medium (CVSS 6.1) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 1.21% chance of exploitation in the next 30 days, higher than 67.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.1/10
010
Medium · v3.1 (NVD)EPSS score
1.21%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 5 · Related 4Timeline
- 28-12-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
WavPack 5.3.0 has an out-of-bounds write in WavpackPackSamples in pack_utils.c because of an integer overflow in a malloc argument. NOTE: some third-parties claim that there are later "unofficial" releases through 5.3.2, which are also affected.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Medium 5.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.21%
Chance of exploitation in the next 30 days
Percentile
68%
Versus all other CVEs
30-day change
+0.01 pp
From 1.20% on 18-09-2026
18-09-202618-10-2026
EPSS score1.21%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundWavpack
Maturity: poc
Weaknesses
CWE · root cause- CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Suse19 products
- wavpack&distro=HPE Helion OpenStack 8< 4.60.99-5.9.1
- wavpack&distro=SUSE Linux Enterprise Point of Sale 11 SP3< 4.50.1-1.33.1
- wavpack&distro=SUSE Linux Enterprise Server 11 SP4-LTSS< 4.50.1-1.33.1
- wavpack&distro=SUSE Linux Enterprise Server 12 SP2-BCL< 4.60.99-5.9.1
- wavpack&distro=SUSE Linux Enterprise Server 12 SP2-LTSS< 4.60.99-5.9.1
Debian2 products
- wavpack< 5.3.0-2
- debian_linuxEOL9.0
Fedoraproject1 product
- fedoraEOL32 | 33
Mageia1 product
- wavpack< 5.1.0-4.2.mga7
Ubuntu1 product
- wavpack< 5.1.0-2ubuntu1.5 | < 5.2.0-1ubuntu0.1
Wavpack1 product
- wavpack5.3.0
6 vendors · 25 products
References
16 links- lists.debian.org/debian-lts-announce/2021/01/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory