CVE-2018-10887

A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in gitdeltaapply 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.

References

Affected packages

Git / github.com/libgit2/libgit2

Affected ranges

Type: GIT
Repo: https://github.com/libgit2/libgit2
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

3f461902dc1072acb8b7607ee65d0a0458ffac2a

Fixed

504bd54a2b57e8d606c63c00e5e15ea68a30bc5b

Fixed

c1577110467b701dcbcf9439ac225ea851b47d22

Affected versions

v0.*

v0.1.0

v0.10.0

v0.11.0

v0.12.0

v0.13.0

v0.14.0

v0.15.0

v0.16.0

v0.17.0

v0.18.0

v0.19.0

v0.2.0

v0.20.0

v0.21.0

v0.21.0-rc1

v0.21.0-rc2

v0.22.0

v0.22.0-rc1

v0.22.0-rc2

v0.23.0

v0.23.0-rc1

v0.23.0-rc2

v0.24.0

v0.24.0-rc1

v0.24.4

v0.25.0

v0.25.0-rc1

v0.25.0-rc2

v0.25.1

v0.26.0

v0.26.0-rc1

v0.26.0-rc2

v0.27.0

v0.27.0-rc1

v0.27.0-rc2

v0.27.0-rc3

v0.27.1

v0.27.2

v0.3.0

v0.8.0

Database specific

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            "deprecated": false,
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