CVE-2018-10887
mediumpriority · track · 33EPSS 0.021 · 81 %ileEURUUSEPSS · scored 2026-10-27
A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker may use this flaw to leak memory addresses or cause a Denial of Service.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–8.1
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (19)
External citations — patches, advisories, analysis.
- https://bugzilla.redhat.com/show_bug.cgi?id=1598021cnnvd
- https://github.com/libgit2/libgit2/commit/3f461902dc1072acb8b7607ee65d0a0458ffac2acnnvd
- https://github.com/libgit2/libgit2/commit/c1577110467b701dcbcf9439ac225ea851b47d22cnnvd
- https://github.com/libgit2/libgit2/releases/tag/v0.27.3cnnvd
- https://lists.debian.org/debian-lts-announce/2018/08/msg00024.htmlcnnvd
- https://lists.debian.org/debian-lts-announce/2022/03/msg00031.htmlcnnvd
- https://www.auscert.org.au/bulletins/ESB-2022.1177cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=1598021enisa_euvd
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